Sei Shiraishi Beauty & Wellness | Skincare, Pilates & Makeup

From her role as Nao in the NHK historical drama Toyotomi Brothers! to Rena Esaka in the Prime Video series Marry My Husband, Yukina in Netflix's live-action Yu Yu Hakusho, and the October 2026 medical drama Emergency Room 24 Hours, Japanese actress Sei Shiraishi continues to impress audiences with her ability to portray remarkably different characters.

Known for her refined features, expressive eyes, and naturally radiant appearance, Shiraishi has a surprisingly adventurous personality behind her composed public image. Her interviews reveal a curious, enthusiastic woman who goes to extraordinary lengths to explore the things she loves.

In fact, Shiraishi has been passionate about skincare since elementary school. Her mother worked as an aesthetician, so applying sunscreen and facial lotion became familiar habits from an early age.

In 2023, she enthusiastically researched skincare ingredients and favorite cosmetics, even traveling to Nagoya for beauty treatments she wanted to experience. By 2026, however, she had also come to appreciate simpler routines, sometimes using only toner and emulsion or a sheet mask.

Her wellness habits are equally interesting. They include home workouts, stretching before bed, Pilates, and posture-focused preparation for a photobook shoot. She also enjoys drinking warm water in the morning and relaxing with hinoki-scented bath products in the evening.

Away from beauty and fitness, she loves exploring shaved-ice cafés throughout the year and has enjoyed massage treatments, bodywork, and sauna visits. Her hobbies include spending time with her beloved cat, Mou-chan, pottery, anime, and music.

Drawing on interviews and official sources published between 2019 and 2026, this comprehensive guide explores Sei Shiraishi's beauty secrets, skincare routine, favorite cosmetics, makeup preferences, hair care, diet, exercise, sleep, bathing rituals, and relaxation habits. It also introduces her career, family background, memorable roles, and personality, making it an accessible introduction for readers discovering her for the first time.

1. Who Is Sei Shiraishi? Career, Famous Roles, Family, and Beauty Beginnings

Sei Shiraishi was born on August 10, 1998, in Kanagawa Prefecture, Japan. She began her entertainment career in 2016 and is represented by the talent agency FLaMme.

She entered the entertainment industry after being scouted during her second year of high school. Since then, she has worked in television dramas, films, commercials, and beauty magazines.

In 2018, she played the heroine Iori Yoshizuki in the television adaptation of I"s. Her performance in the 2019 drama Absolute Justice also attracted attention and earned her the Newcomer Award at the Confidence Award Drama Prize.

That same year, she was selected as the 12th commercial spokesperson for Zexy, a popular Japanese wedding information magazine. Her friendly smile and elegant appearance helped bring her to a wider audience.

In 2020, she took on her first leading role in a serial television drama with Fear Newspaper. She followed this with the romantic youth film My Heart Beats Because of You in 2021, portraying a straightforward young woman navigating her feelings.

Her other television appearances include Ooku, Unbelievable, Fermat's Cuisine, and New Airport Occupation, demonstrating her range across historical dramas, suspense, and contemporary entertainment.

She also appeared as Yukina in Netflix's live-action adaptation of Yu Yu Hakusho, bringing a gentle and expressive presence to a character from the internationally recognized manga.

In 2025, Shiraishi portrayed Rena Esaka in the Japanese Prime Video adaptation of Marry My Husband. Rena is a complex character whose actions profoundly affect the protagonist's life.

Reflecting on the production, Shiraishi described the opportunity to explore unfamiliar expressions and emotional dimensions as an important turning point in her development as an actress.

In 2026, she played Nao in the NHK historical drama Toyotomi Brothers!. Nao is a childhood friend of the protagonist, Koichiro, and a woman determined to remain true to her feelings amid the uncertainties of Japan's Warring States period. Her character's story reached a major turning point in March 2026, drawing considerable attention to Shiraishi's performance.

On October 12, 2026, the Fuji TV medical drama Emergency Room 24 Hours began airing. Shiraishi plays Amira Hiiragi, a resident doctor, marking her first major challenge with realistic medical scenes.

Amira dreams of eventually opening a cosmetic surgery clinic and actively uses social media. Raised by parents who operate an orthopedic clinic, she enters her medical training with a particular vision of her future career.

Throughout the story, her encounters with experienced doctors and patients begin to change her perspective on emergency medicine. It is an especially intriguing character for Shiraishi, whose personal enthusiasm for beauty is already well known.

From romance and suspense to historical and medical dramas, Shiraishi continues to embrace diverse roles. Her openness to unfamiliar challenges is a defining characteristic of her career.

Her Mother Was an Aesthetician: A Love of Skincare Since Childhood

One of the most important influences on Shiraishi's beauty habits is her mother.

In a 2023 interview with VOCE, Shiraishi revealed that her mother had worked as an aesthetician.

When she was in elementary school, her mother would apply facial lotion to her skin after bathing. Beauty and skincare were everyday topics in their home, making personal care a familiar part of life from childhood.

In a 2026 interview with MAQUIA, she recalled being taught to wear sunscreen and properly remove it with cleansing products after returning home.

Shiraishi also admires her mother's dedication to skincare and has spoken warmly about how beautiful her mother's skin looks.

By junior high school, her interest had expanded from skincare to makeup. She began buying products such as tinted lip balm and blush for herself.

Finding new cosmetics, experimenting with colors, and discovering textures that suited her eventually became a lasting personal interest.

As her acting career progressed, she encountered a wider variety of beauty products on professional sets. Makeup artists introduced her to unfamiliar brands and techniques, giving her even more opportunities to learn.

The skincare basics she learned from her mother gradually developed into a fascination with ingredients, cosmetic formulas, makeup techniques, and the experience of choosing products for herself.

Her Dream of Voice Acting, Marriage Information, and Learning to Appreciate Her Voice

Before becoming an actress, Shiraishi dreamed of working as a voice actress.

She loved anime and was fascinated by the way a voice could bring a character or story to life. At the time, however, she felt self-conscious about the relatively low pitch of her own voice.

In a June 2021 interview with anan, she recalled previously regarding her voice as a personal insecurity.

Through acting and experiencing different roles, she gradually began to appreciate her voice as one of the qualities that made her unique.

She particularly enjoyed radio work because it allowed her to speak naturally, rather than performing as a fictional character.

In an October 2026 interview with Yanase, she also mentioned listening to podcasts while traveling by car. Her early interest in voice acting has developed into an ongoing appreciation of spoken storytelling and audio entertainment.

Regarding family, her interviews contain especially memorable stories about the beauty habits she learned from her mother. She has also expressed gratitude toward her parents on social media, reflecting the importance of close personal relationships in her life.

As of October 2026, no publicly confirmed marriage announcement from Shiraishi or her management had been identified. Her appearance in Zexy commercials and her role in Marry My Husband are professional projects rather than information about her personal marital status.

Outside work, she often speaks fondly about her family, friends from her hometown, and the time she spends with her cat.

2. Sei Shiraishi's Skincare Routine: From Ingredient Research to Simple Beauty Care

Skincare is one of the areas in which Shiraishi has shared the most detailed information about her personal beauty habits.

In a 2023 interview with VOCE, she described an enthusiastic approach that involved researching cosmetic ingredients and comparing numerous products.

By 2026, she told MAQUIA that some days she preferred a much simpler routine, using only toner and emulsion or a sheet mask, depending on how her skin felt.

Looking at her interviews chronologically reveals how her approach has evolved from extensive experimentation toward choosing products according to her skin's needs on any particular day.

Her 2023 Favorite Skincare Products: Cleansers, Serums, and Night Creams

In a 2023 VOCE interview, Shiraishi mentioned admiring the skin of Hyunjin from Stray Kids.

At the time, she was interested in skincare ingredients such as retinol, vitamin C, and hydroquinone, researching products and choosing items according to the condition of her skin.

She enjoyed trying different brands, comparing textures, and discovering which formulas felt comfortable to use.

Among the cleansers she introduced were Aqua Venus Pure Moisture Cleansing and the rice-bran enzyme cleansing product from Minna de Mirai wo.

She selected products according to her makeup and how her skin felt, paying particular attention to the cleansing experience and finish.

Her skincare collection at the time also included MIMURA's hitogata Skin Lotion and hitogata Skin Serum, as well as Christina's Teraskin.

She was interested in Dior's Snow range and products from Christina's Illustrious collection.

Her personal cosmetics featured in 2023 also included Christina's Illustrious Night Cream and Illustrious Mask.

These selections illustrate her interest in nighttime skincare and facial masks, along with her habit of choosing products according to the day's circumstances.

During the drier winter months, she introduced products such as La Mer's The Moisturizing Soft Cream and Christina's Muse Nourishing Cream.

When choosing moisturizers, she paid attention not only to a rich, comfortable feel but also to the weight and texture of the formula on her skin.

In another 2023 interview, Shiraishi recalled being pleased with how her makeup looked even after a long day of filming when she had been unable to touch it up.

Her comments suggest that the appeal of skincare, for her, extends beyond ingredient names or product reputations. She also values the experience of using a product and observing how her skin feels throughout the day.

These items reflect products and ingredients she discussed in 2023. Cosmetic concentrations and recommended application methods vary, so individual product directions and precautions should always be followed.

Beauty Salons, Trips to Nagoya, and Sheet Masks: Her Simpler Routine in 2026

Shiraishi's curiosity about beauty extends well beyond her bathroom shelf.

In a June 2021 interview with anan, she mentioned enjoying visits to bodywork and massage establishments on her days off.

In December 2023, she told VOCE that visiting beauty salons had become one of her hobbies. At the time, she went to a salon approximately once a week.

She researched establishments through services such as Hot Pepper Beauty and was interested in trying treatments including Korean-style facial massage and Lala Peel.

In 2026, she also recalled traveling to Nagoya for a bodywork appointment. Her long-standing habit of researching beauty experiences and trying them firsthand illustrates her enthusiasm for exploring new approaches.

By 2026, however, her daily skincare philosophy had developed in another direction.

After years of experimenting with different cosmetics, she sometimes completed her routine with just toner and emulsion.

On other days, she chose a straightforward routine involving a sheet mask, responding to how her skin felt rather than following an identical series of steps every day.

She also explained that some moisturizing creams could feel too heavy depending on the condition of her skin, so she adjusted whether to use them.

Her experience with many different products appears to have given her the confidence to enjoy both carefully selected skincare and simpler routines.

Shiraishi has said that she wants to remain interested in beauty information because the condition of her skin and body changes over time.

3. Sei Shiraishi's Makeup and Hair Care: Favorite Cosmetics, Photobook, and Beauty Campaigns

Shiraishi is just as passionate about makeup as she is about skincare.

She follows cosmetic launches, practices techniques through makeup videos, and sometimes purchases products she has discovered while working with professional makeup artists.

Beauty magazine shoots and television productions also give her opportunities to explore colors, hairstyles, and makeup styles different from those she normally chooses.

Natural Makeup, LUNASOL Eyeshadow, and Her Growing Cosmetics Collection

In a 2023 interview with VOCE, Shiraishi said she preferred natural makeup that did not appear overly elaborate.

She liked nude tones for eyeshadow, blush, and lipstick, while defining her eyes with black eyeliner and mascara.

One of her particular favorites was LUNASOL Eye Coloration 15.

She loved the combination of shades and textures, describing it as a palette she reached for frequently.

Other items she introduced from her personal makeup collection included SUQQU The Liquid Foundation, concealer from MiMC, and eyeliner and mascara from D-UP.

In 2023, she also became interested in makeup techniques for highlighting the area beneath the eyes, often called namidabukuro makeup in Japan.

She practiced by watching YouTube tutorials from makeup artist Won Jung-yo, finding that creating a subtle, natural-looking finish required some experimentation.

Her growing cosmetics collection eventually needed a dedicated storage solution. She bought a large makeup case on Amazon after noticing similar cases used by professional makeup artists on set.

The case helped her organize eyeshadow palettes, base makeup, brushes, and other beauty tools, allowing her to enjoy choosing products from her collection at home.

Interestingly, she sometimes carries little more than lipstick when going out.

She enjoys collecting cosmetics at home while keeping her everyday bag relatively light.

Her interest in cosmetics was still going strong in 2026. In MAQUIA, she discussed her attraction to beautifully coordinated eyeshadow palettes and delicate shimmer, sometimes checking launch dates so she could buy products that caught her attention.

Because professional makeup artists usually prepare her look for work, she often saves her personally purchased cosmetics for days off. Using a favorite product can be an enjoyable way to lift her mood.

Even someone as knowledgeable about cosmetics as Shiraishi has a few early makeup mishaps. When she first purchased liquid foundation, she chose a shade that did not match her skin and a matte texture that was not to her taste.

Over time, those experiences helped her become more confident in choosing colors, finishes, and formulas that suited her preferences.

Her Photobook unveil and Campaigns for +tmr and MENARD

Released on September 6, 2024, Shiraishi's second photobook, unveil, allowed her to explore a wide range of looks and expressions.

Photographed over three nights and four days in Okinawa, the book includes relaxed images with minimal makeup, casual indoor scenes, dresses with open backs, and swimwear photographs.

Shiraishi was actively involved in the production process, sharing her preferences regarding the photographer, stylist, and hair and makeup artist.

Hair and makeup artist Tomoko Okada was someone she already knew and trusted from previous work. Shiraishi appreciated Okada's personality and described her as someone who made her feel energized.

Costume choices were also discussed carefully with the styling team, taking into account the photobook's travel-inspired concept and the movement and combinations of different outfits.

The resulting photographs capture both relaxed, natural expressions and more glamorous styling.

In a 2024 interview with smart Web, Shiraishi explained that she had been unfamiliar with many aspects of producing her first photobook. By the second, she felt more able to communicate her wishes and participate actively in creating the finished work.

Enjoying the atmosphere on set while helping shape her own visual presentation became another valuable creative experience.

In 2026, Shiraishi also appeared in advertising for the hair care brand +tmr (Plus Tomorrow).

A brand commercial released in February focused on natural hair movement and a no-styling concept.

In April, she appeared in an official announcement accompanying the launch of two dry shampoos, Smooth and Moist, as part of the brand's promotional campaign.

The campaign used flowing hair and relaxed expressions to communicate the brand's approach to everyday hair styling.

Dry shampoo is a hair care product intended for convenient refreshing of hair and scalp without the use of water. Shiraishi's participation is presented here as part of her beauty-related advertising work.

In March 2026, she also became a new campaign muse for Japanese cosmetics manufacturer MENARD's Fairlucent range.

In the commercial, she opens a striking blue window, creating a memorable visual introduction to the brand's skincare concept.

Her appearances for +tmr and MENARD are advertising activities, distinct from the personal cosmetics she introduced in her 2023 interviews.

From her favorite everyday makeup to professional hair styling for photobooks and beauty advertisements, Shiraishi has found many ways to connect her interest in beauty with her creative work.

4. Sei Shiraishi's Diet, Warm Water, and Bathing Habits: Favorite Foods and Relaxation

Shiraishi's relationship with food includes favorite dishes, homemade desserts, and an experience that encouraged her to learn more about the connection between her diet and the condition of her skin.

She also loves visiting shaved-ice cafés throughout the year, sometimes stopping by interesting establishments between work commitments.

In 2026, she shared everyday habits involving warm water in the morning and relaxing baths in the evening.

Chicken Liver, Sea Urchin, and Tiramisu Shaved Ice: Her Food Preferences

In interviews around 2019, Shiraishi mentioned enjoying chicken, especially the delicacy known as white chicken liver.

She also liked sea urchin and chocolate, and sometimes made desserts such as pudding and cookies when she had time.

One particularly distinctive aspect of her food interests is her enthusiasm for Japanese shaved ice, or kakigori.

In a June 2021 interview with Let's Enjoy Tokyo, she described researching popular shaved-ice cafés and visiting them both on days off and between work engagements.

Surprisingly, she said she often visited shaved-ice shops more frequently in winter than in summer.

She appreciated cafés that continued to serve carefully prepared shaved ice during the colder months, making winter visits a special part of the experience.

One of her favorite varieties in 2021 was tiramisu shaved ice, a dessert-style creation combining ice with creamy and coffee-inspired flavors.

Her enthusiasm continued, with seasonal flavors such as sweet potato and chestnut becoming part of the appeal of autumn and winter visits.

In a July 2024 VOCE interview, Shiraishi also spoke about an experience that changed how she thought about food and her skin.

During the filming of a production, she noticed a significant change in her skin's condition and consulted a medical professional, undergoing tests.

Through that experience, she learned new information about how her body responded to certain foods she had been eating.

She subsequently became more conscious of her food choices while navigating a busy filming schedule.

Her account focused on gaining a better understanding of her individual circumstances through professional consultation. The specific foods and medical details are not identified here.

Before the 2024 photoshoot for unveil, she also paid attention to the amounts of foods that, based on her own experience, she associated with changes in her skin.

At the same time, she thoroughly enjoyed Okinawa's local food during the trip.

On the final evening of the shoot, she and the production team shared squid-ink somen noodles. The meal left their mouths darkened by the squid ink, and everyone laughed at one another's appearance.

She also visited Yagiya, an Okinawan soba restaurant, and tried asa soba, made with a type of seaweed called asa. The seaweed was incorporated into the noodles, making it a memorable local dish.

In an October 2026 Yanase interview, Shiraishi recalled frequently visiting Enoshima with friends during her student years. She said she would love to return to the coast and enjoy a bowl of rice topped with fresh whitebait, known in Japan as nama-shirasu don.

Whether making thoughtful food choices before a shoot or enjoying regional specialties while traveling, food remains an important and enjoyable part of her life.

In a 2026 MAQUIA interview, Shiraishi also described her habit of drinking warm water in the morning.

She uses an ON℃ZONE Sayu Senka mug, designed to bring hot water to a more comfortable drinking temperature.

She enjoys this convenient routine because drinking warm water feels like a signal that her day is beginning.

Saunas, Long Baths, and Hinoki Fragrance: Her Changing Relaxation Rituals

Shiraishi has long enjoyed finding places and activities that help her unwind.

In 2021, she spoke about enjoying massage and bodywork appointments on her days off. In April 2022, she selected saunas as something that supported her everyday sense of well-being in an interview with POPEYE Web.

In a 2023 interview connected to her advertising work for the beverage brand Micho, she described taking long baths while watching television dramas or YouTube videos.

By 2026, she was also enjoying choosing bath products according to her mood.

On days when she felt cold, she sometimes selected a hydrogen-themed bath powder. When she wanted a leisurely, fragrant bath, she enjoyed the scent of hinoki, Japanese cypress.

Products she introduced at the time included H& SS Bath Powder and KITOWA Bath Essence Hinoki.

She particularly liked the hinoki fragrance and sometimes chose the bath essence as a gift for friends.

Her interest in fragrance extended to items such as SINN PURETÉ Mindful Fragrance Non-Alcohol Dream Catcher and BAUM Aromatic Room Spray Woodland Winds.

She appreciated the gentle sweetness of the SINN PURETÉ fragrance and the fresh, forest-inspired scent of BAUM.

Because she lives with a cat, Shiraishi also pays attention to where she uses fragranced products, sometimes keeping them to a limited personal space around her bedding.

For households with cats and other pets, fragrance ingredients, essential oils, ventilation, and placement require particular care. Her comments illustrate an effort to enjoy preferred scents while considering her living environment.

From saunas in 2022 to long baths in 2023 and fragrant bathing rituals in 2026, Shiraishi has continued to explore different ways of enjoying her downtime.

5. Sei Shiraishi's Fitness Routine: Strength Training, Pilates, Posture, and Photobook Preparation

Shiraishi's fitness habits have changed according to her work, interests, and the condition of her body.

In 2019, she mentioned joining a gym with her mother. In 2023, she spoke about home bodyweight training and stretching before bed. By 2024, she was attending Pilates classes and bodywork appointments while preparing for her photobook.

In 2026, her interest in posture and body movement continued, along with a desire to return to swimming and explore Gyrotonic training.

Gym Workouts, Bodyweight Exercise, and Pilates for unveil

Family experiences also played a part in Shiraishi's early interest in exercise.

In a 2019 interview, she mentioned that she and her mother had joined a gym together.

Her interest in fitness continued, and by 2023 she had experience attending a personal training gym.

At that time, she was also doing bodyweight exercises at home and stretching before going to sleep each night.

In a 2023 CLASSY. interview, she listed Pilates among the activities she hoped to try.

By July 2024, she confirmed in VOCE that she was already attending Pilates classes whenever her schedule allowed.

In the same interview, she discussed being conscious of posture-related concerns such as forward head posture, rounded shoulders, and an arched lower back. She tried to make time for stretching as regularly as possible.

Before the September 2024 release of unveil, she attended Pilates and bodywork sessions as part of her preparations for the photographs.

Because the book included several outfits with open backs, she paid special attention to the movement of her arms and shoulders, as well as her overall posture and body alignment.

She also explored care related to the appearance of her midsection before the swimwear photographs, mentioning a treatment she described as something similar to an abdominal massage.

These were personal experiences she described in the context of preparing for her photobook.

Above all, she wanted to arrive at the shoot feeling comfortable and satisfied with the way she presented herself.

The photobook also contains casual images with minimal makeup and comfortable clothing, allowing her to capture a more natural side alongside styled portraits.

In 2026, Shiraishi continued to attend Pilates classes, according to her MAQUIA interview.

She also expressed an interest in returning to swimming, which she had previously practiced while preparing for a role as a competitive swimmer.

She recalled feeling that swimming made the area around her shoulder blades easier to move, an experience that contributed to her interest in trying it again.

Another activity she wanted to explore was Gyrotonic, a movement-based exercise method involving flowing, three-dimensional motions.

From gym memberships and home workouts to Pilates and renewed interest in swimming, her choices reflect a willingness to adapt how she exercises as her life and professional commitments evolve.

Posture, Pillows, and Nighttime Stretching: Creating a Comfortable Sleep Environment

By 2026, Shiraishi's interest in posture had also extended to her bedding.

In MAQUIA, she explained that she had started using a pillow developed by a practitioner at an osteopathic clinic she visited.

The product she introduced was the Doctor Bones Pillow. She had only recently begun using it at the time of the interview but liked how stable and comfortable it felt.

Her curiosity about posture therefore extended beyond Pilates and daytime stretching to the conditions in which she rested at night.

In 2023, she had already described stretching before bed as a regular habit. By 2026, she was also taking an interest in choosing bedding that felt suitable for her.

Her daily rhythm included enjoyable evening baths and fragrances, followed by warm water from a specially designed mug in the morning.

These small rituals show her interest in creating a pleasant environment for winding down and beginning a new day.

She also continued exploring ways to use her body comfortably through stretching and movement, paying attention to how her posture felt during both work and leisure.

6. Sei Shiraishi's Personal Life and Emotional Well-Being: Her Cat, Hobbies, and Friendships

Alongside her dedication to beauty and acting, Shiraishi values time spent enjoying the things she loves.

Whether relaxing with her cat, meeting friends for a meal, making pottery, or exploring music, she enjoys experiences outside work and continues to discover new interests.

Life With Her Cat Mou-chan: Pottery, Anime, and Music

One of Shiraishi's most cherished companions is her cat, Mou-chan.

In a 2023 CLASSY. interview, she explained that she had lived with the cat since she was approximately 12 years old.

Having spent many years together since the cat was young, she treasures quiet moments at home with her pet.

Mou-chan is friendly and curious. Shiraishi shared that the cat sometimes fetches a ball after she throws it, carrying it back in its mouth.

She also enjoys watching Mou-chan sleep comfortably with its belly exposed.

For someone whose work involves busy sets and many different people, time spent relaxing at home with a beloved pet is particularly meaningful.

Shiraishi is also enthusiastic about discovering new hobbies.

In 2023, she mentioned enjoying pottery as a way to change her mood and treat herself to a satisfying experience.

Going out for delicious meals, meeting friends, and making things by hand all provide opportunities to enjoy life outside her professional commitments.

Anime and music have also been part of her life since childhood.

Inspired by the anime K-On!, she became interested in the electric guitar and received one when she was young.

She also tried playing the drums during junior high school, discovering the enjoyment of making music herself.

Her childhood dream of voice acting, love of anime, interest in musical instruments, pottery, and life with Mou-chan reveal a wide range of creative and personal interests.

Her collaborative approach to creating unveil likewise reflects the pleasure she finds in making something with people she trusts.

Acting professionally and enjoying her hobbies are different experiences, but both give Shiraishi opportunities to learn, express herself, and explore new possibilities.

Time With Friends, Car Journeys, and Reflections on Ten Years of Acting

In her 2021 anan interview, Shiraishi spoke about valuing time with friends from her hometown.

She enjoys simply meeting and chatting, even when there is no special activity planned.

In a 2023 CLASSY. interview, she explained that it was easy to become so absorbed in acting that work occupied most of her thoughts. As a result, she consciously made time for things she enjoyed in her personal life.

Eating favorite foods, making pottery, relaxing with her cat, and spending time with friends all became opportunities to shift her attention away from work.

In a 2024 interview about her photobook, she expressed a desire to make the most of her twenties and eventually look back on them as a fulfilling period of her life.

Her performance in Marry My Husband in 2025 brought another opportunity to explore unfamiliar aspects of acting. She described feeling that the role allowed her to move beyond some of her previous limitations.

In an October 2026 interview with Yanase, she reflected on reaching the tenth anniversary of her acting debut.

She felt that she had become better able to observe the entire filming environment, rather than focusing solely on her own performance.

During car journeys to work, she sometimes chats with her manager, listens to podcasts, or enjoys watching the scenery outside.

When she wants to revisit her interpretation of a character, she may also read the script again during the journey.

Some journeys provide time to prepare for work, while others are opportunities to enjoy audio programs or a changing view. She chooses how to spend that time according to the day's circumstances.

In MAQUIA in 2026, she also described wanting to become someone who can consider other people's perspectives and communicate with kindness.

Working with people who hold different values has made her appreciate the importance of listening and remaining open to unfamiliar ideas.

Whether learning about skincare ingredients, attending Pilates, making pottery, or exploring new hobbies, Shiraishi approaches these experiences with curiosity and personal purpose.

Her ability to keep learning while selecting habits that suit her changing life is one of the most appealing aspects of her personality.

Conclusion: Sei Shiraishi's Beauty and Wellness Philosophy

Looking at Sei Shiraishi's beauty and wellness habits reveals both a lifelong interest in skincare and a willingness to change her routines through experience.

With an aesthetician mother, she grew up familiar with sunscreen and facial lotion, then developed an interest in tinted lip products and blush during junior high school.

By 2021, massage and bodywork had become enjoyable ways to spend her days off. In 2022, she also identified saunas as an important personal relaxation activity.

In 2023, she was enthusiastically researching skincare ingredients, exploring cosmetics, visiting beauty salons, and sometimes purchasing eyeshadow discovered through professional shoots.

During 2024, changes in her skin prompted her to seek medical advice and learn more about her personal relationship with food. She also paid attention to diet and posture while preparing for her photobook unveil.

By 2026, she had begun enjoying simpler skincare routines, sometimes choosing only toner and emulsion or a sheet mask according to how her skin felt.

She continued to enjoy natural makeup, nude shades, and LUNASOL eyeshadow, while expanding her professional beauty work through campaigns for +tmr and MENARD.

Her fitness habits have included gyms, bodyweight workouts, stretching, and Pilates. Her interest in posture and movement remained strong in 2026.

In everyday life, she enjoys warm water in the morning, hinoki fragrance and bath products in the evening, and spending meaningful time with her beloved cat, friends, and hobbies.

Alongside these personal routines, her acting career has continued to grow through major projects such as Marry My Husband in 2025 and Toyotomi Brothers! and Emergency Room 24 Hours in 2026.

Learning about beauty, enjoying physical movement, exploring favorite hobbies, and making time for meaningful relationships all form part of Shiraishi's lifestyle. Her experiences offer an engaging perspective on finding enjoyable routines, staying curious, and living in a way that feels authentic to oneself.

References

• anan — Sei Shiraishi on her voice, personal identity, and leisure time (2021, Japanese)
• VOCE — Sei Shiraishi's skincare, favorite cosmetics, and beauty ingredients (2023, Japanese)
• VOCE — Sei Shiraishi on skin changes, diet, posture, stretching, and Pilates (2024, Japanese)
• smart Web — Behind the scenes of Sei Shiraishi's photobook unveil (2024, Japanese)
• MAQUIA — Sei Shiraishi's skincare, warm water, bathing, Pilates, and fragrance preferences (2026, Japanese)
• +tmr Official Website — Sei Shiraishi's hair care and dry shampoo campaign (2026, Japanese)
• Fuji Television — Sei Shiraishi's role and comments for Emergency Room 24 Hours (2026, Japanese)

Note: This article is based on publicly available information and interviews with Sei Shiraishi. Products, beauty routines, and exercise habits reflect the periods in which they were discussed. When using cosmetic products or ingredients, please follow the manufacturer's directions and precautions.