Nana Seino’s Beauty & Wellness | Skincare, Diet, Fitness & Sleep

From her graceful swordsmanship as Kyou Kai (Kyoukai) in the Kingdom film series to her spirited portrayal of Riko Akasaka in From Today, It's My Turn!! and her leading role as Yuki Kasuhara in 119 Emergency Call, Japanese actress Nana Seino has built an impressive career spanning action, comedy and human drama.

Known for her radiant-looking skin, natural smile and remarkable physical agility, Seino also has a fascinating personality beyond the screen. Her interviews reveal someone who enjoys her everyday beauty rituals and becomes deeply absorbed in the things she loves.

When it comes to skincare, she places particular importance on moisturising her dry-prone skin. She likes to care for her skin soon after bathing, has discovered sheet masks that suit her and incorporates all-in-one skincare products into her routine when life gets busy.

In 2025, Seino revealed that she often goes without makeup in her private life. However, entering her thirties has inspired her to explore lip colours, eyeshadows and new ways of expressing herself through makeup.

Her wellness habits are equally approachable. She starts her morning with a cup of warm water, pays attention to including natto and yogurt in her diet, and enjoys running and exercising at home with a Pilates ring.

Another essential part of Seino's approach to physical wellbeing is the action training she has developed throughout her acting career. For Kingdom, she underwent months of practice to master the distinctive sword movements of Kyou Kai.

Behind those spectacular performances, however, is an experience that changed her outlook. After injuring her lower back during intensive training in her twenties, she began paying closer attention to understanding her body, preparing carefully and allowing time for recovery.

Away from work, Seino married Japanese actor Toma Ikuta in 2020, and the couple announced the birth of their first child in 2022. She also enjoys looking after around 20 to 30 houseplants, playing video games, watching Korean dramas and discovering new places through solo travel.

Drawing on Seino's own interviews, beauty magazines and official brand information, this article explores her career, marriage and family life, skincare routine, makeup, cosmetics featured in magazine shoots, diet, warm-water habit, interest in gut health, exercise, Pilates, sleep, bathing and hobbies. Along the way, we will discover the stories behind her action performances, unexpected travel adventures and the everyday experiences that make Nana Seino such an engaging personality.

1. Who Is Nana Seino? Career, Marriage, Family and Her Journey as an Action Actress

Nana Seino was born on October 14, 1994, in Aichi Prefecture, Japan. She began her entertainment career in 2007 as a model for the teenage fashion magazine Pichilemon, before developing into an actress known for her versatility in film and television.

Her journey from an energetic young girl who loved physical activity to a highly skilled action performer has included years of dedicated practice, career-defining opportunities and experiences that have shaped her approach to acting.

From Pichilemon Model to Kingdom Star: Career Highlights and Major Roles

Towards the end of elementary school, Seino entered an audition for the fashion magazine Pichilemon after being encouraged by a friend. She passed the audition and began modelling in her first year of junior high school.

Watching other young models pose naturally and change their expressions effortlessly in front of the camera inspired her to practise at home. She would stand in front of a mirror, work on her smile and wink, and invent different poses to expand her repertoire.

Having loved outdoor play and physical activity since childhood, Seino eventually decided to pursue acting, particularly performances involving action and movement.

A major turning point came with the 2014 film Tokyo Tribe, in which her athletic ability and action performance attracted attention. She further demonstrated her screen presence in the 2015 film Nowhere Girl, known in Japanese as Tokyo Mukokuseki Shojo.

In 2018, she appeared in the NHK morning drama Half Blue Sky. That same year, she played Riko Akasaka in From Today, It's My Turn!! (Kyou Kara Ore Wa!!), gaining recognition for her combination of comic timing and authentic action skills.

In a 2025 interview, Seino looked back on From Today, It's My Turn!! as an important opportunity that helped a wider audience recognise her as an actress with a strong background in action.

She went on to appear in television dramas including Shiro demo Kuro demo Nai Sekai de, Panda wa Warau., Only Just Married and On a Starry Sunday Night, continuing to broaden her range as a performer.

In 2025, she starred as Yuki Kasuhara, an emergency call dispatcher, in 119 Emergency Call. The drama follows the demanding work of those who answer emergency calls, allowing Seino to portray a different kind of tension through dialogue, listening and emotional expression.

That year, she also provided the Japanese voice of Olga, the young protagonist's aunt, in Disney and Pixar's Elio. Having secured the role through an international audition process, she embraced voice acting as another creative challenge.

One of her most celebrated roles remains Kyou Kai, a talented swordswoman in the Kingdom film series.

Seino first appeared in the role in Kingdom 2: Far and Away in 2022, continuing in Kingdom: The Flame of Destiny and Kingdom: Return of the Great General. Her fluid sword movements became a signature element of the character, and her performance in Kingdom 2 earned her the Best Supporting Actress award at the 65th Blue Ribbon Awards.

Her career continued in 2026 with a special episode of 119 Emergency Call and the film Kingdom: Tamashii no Kessen (the Japanese title meaning "Battle of Souls"). Combining the expressiveness she developed through modelling with years of action training, Seino continues to explore a broad variety of roles.

Marriage to Toma Ikuta and Motherhood: How Her Approach to Work Has Changed

Nana Seino announced her marriage to fellow Japanese actor Toma Ikuta in June 2020. The couple are known to have developed their relationship after appearing together in a television drama.

In March 2022, they jointly announced the birth of their first child. Seino has continued her acting career while placing importance on time with her family.

In interviews connected with Elio in 2025, she discussed how becoming a mother had influenced her relationship with work.

During her twenties, she often immersed herself completely in the work immediately in front of her, moving through demanding schedules with tremendous energy. Now she is more conscious of balancing family life with her professional commitments and concentrating fully on the projects she chooses to undertake.

She has also spoken about wanting to be a mother her child can admire.

In 2023, Seino appeared alongside actress and mother Anne Watanabe in advertising for Shiseido's AQUALABEL skincare brand. During a promotional event, they discussed finding moments to care for themselves amid busy daily lives.

Balancing home life with acting and continuing to take on fresh creative opportunities, Seino's outlook in her thirties reflects the experiences she has accumulated both on and off screen.

Her Passion for Action, Career Doubts and Rediscovering Her Strengths Through Kingdom

Inspired by action films during her high school years, Seino began studying physical performance in earnest.

Nevertheless, her early acting career also involved uncertainty about future opportunities and how she would establish herself in the industry.

In a 2024 interview with VOCE, she reflected on the tension between having a clear strength in action and wanting to develop her possibilities in other kinds of acting.

Playing Kyou Kai in Kingdom helped her rediscover the joy of being valued for the action skills she had spent years developing.

Portraying a beloved character from the original manga brought considerable responsibility. She worked closely with the action team, discussing difficult movements and approaching each challenge step by step.

Through that experience, Seino came to see her specialist abilities as something to embrace and continue refining.

Her approach today combines two ambitions: broadening her acting range while continuing to develop the physical performance skills that make her distinctive.

2. Nana Seino's Beauty Routine: Dry-Skin Care, Sheet Masks and Moisturising

Skincare is one of the beauty topics Seino has discussed most openly in interviews.

She pays particular attention to skin that tends to feel dry, has found sheet masks that suit her preferences and sometimes relies on all-in-one skincare products when her schedule becomes busy.

Alongside the products themselves, she values consistency and the opportunity to take a little time for herself.

Dryness by Midday: Finding a Sheet Mask That Suits Her Skin

In a July 2024 interview with VOCE, Seino spoke candidly about her experiences with dry-prone skin.

Even after carefully moisturising in the morning, she sometimes felt that her skin had become dry again by midday. She described the sensation as though her skin felt dry beneath the surface.

This led her to look for skincare methods that suited her own skin.

One approach she incorporated was using sheet masks. After trying different options and finding one that worked comfortably for her, she continued using it as part of her routine.

Looking back on the experience, Seino said she personally felt that dryness had become less noticeable and that she was pleased with changes in the appearance of her complexion.

The experience reinforced her appreciation for being consistent with skincare.

Her comments suggest that, rather than focusing only on the excitement of new beauty products, she also values finding something she enjoys using regularly.

These observations are Seino's personal reflections about her skin at the time of the interview. They are presented as part of her individual skincare experience, rather than as a promise of similar results from any particular sheet mask.

Moisturising After a Bath: All-in-One Skincare and Small Moments of Self-Care

In an August 2023 interview with HugMug, Seino described her everyday skincare approach in more detail.

One of her priorities is moisturising soon after getting out of the bath. At the time, she also spoke about incorporating all-in-one skincare products into her usual routine.

That year, she appeared with Anne Watanabe at an event for Shiseido's AQUALABEL brand, where they experienced products from the Special Gel Cream EX range.

The range included varieties such as Moist, Brightening and Oil-In. Seino commented on the smooth texture and refreshing feel of the gel cream.

On days when filming starts early or family life is particularly busy, she appreciates the convenience of a product that brings several skincare steps together.

In 2025, Seino also appeared in an AQUALABEL commercial titled Nana Seino Is a Tsukekomi Beauty Fan, presenting the brand's approach to carefully applying its gel cream.

Considering both her brand appearances and her own comments about skincare, it is clear that she appreciates pleasant textures and practical routines that fit into everyday life.

Her skincare philosophy centres on observing how her skin feels, choosing products that suit her preferences and making those small moments of care part of her daily schedule.

3. Nana Seino's Makeup, Cosmetics and Inner Beauty: A New Outlook in Her Thirties

Although she has experienced countless hair and makeup styles through acting, Seino has said that she often prefers to go without makeup in her personal life.

By 2025, however, entering her thirties had sparked an interest in finding lip colours, eyeshadows and makeup looks that would help her discover new sides of herself.

From Bare-Faced Days to Exploring Lip Colours: Makeup Featured in Biteki

In a 2025 feature for the Japanese beauty magazine Biteki, Seino tried three different spring-inspired makeup looks.

She enjoyed seeing how different colours and textures could give her face a fresh impression and spoke about wanting to explore makeup more as she entered her thirties.

Lip makeup was a particular area of interest. She liked the idea of choosing different colours and finishes to complement her clothing, mood or destination.

The editorial shoot featured cosmetics from brands including NARS, Laura Mercier, SHISEIDO and MAQuillAGE. The makeup team used combinations of eyeshadow, blush and lip products to create several distinct looks.

These were products used during the magazine shoot and should be distinguished from cosmetics that Seino personally owns or uses regularly.

Her hairstyles have also varied considerably across acting projects, from short hair to longer styles. Working with professional hair and makeup artists, she uses her appearance to support the personality and atmosphere of each character.

Now she is increasingly interested in applying that creative curiosity to her own everyday makeup choices.

The Collagen Beauty Jelly in 2026: Advertising Appearances and Product Ingredients

Seino has also appeared in advertising for Shiseido's beauty and inner-wellness brands.

In 2024, she became a brand muse for SHISEIDO BEAUTY WELLNESS, which promotes an approach to everyday wellbeing encompassing skin, body and mind.

Brands associated with the project included TUNE BEAUTE, ROOTINA and The Collagen, with Seino appearing in brand advertising and promotional campaigns.

In 2026, Shiseido introduced activities celebrating the 30th anniversary of The Collagen brand. On August 21, it launched The Collagen Beauty Jelly, accompanied by new advertising visuals featuring Seino.

According to the manufacturer, the product is a portable stick-format jelly with a peach-and-apple flavour. Its listed ingredients include fish collagen peptides, hyaluronic acid, vitamin C and lactic acid bacteria.

The campaign presented two different ways of enjoying products from the range: jelly as an everyday option and a drink for special occasions. Seino appeared with both a warm, natural smile and a more sophisticated expression.

The Collagen range also contains various other products. Some formulations include ingredients such as royal jelly, with ingredient lists differing between individual products.

These details concern Shiseido's products and Seino's advertising involvement. They are separate from the question of which products she personally consumes in her everyday life.

For a clearer understanding of her own eating habits, her interviews offer specific examples such as warm water, natto and yogurt.

4. Nana Seino's Diet and Gut-Health Interests: Warm Water, Natto, Yogurt and Exercise

Two themes stand out in Seino's approach to food: enjoying what she likes to eat and incorporating simple habits that feel manageable in everyday life.

In interviews from 2025, she shared specific details about her morning warm water, natto and yogurt, offering a glimpse into her approach to food and wellbeing.

A Cup of Warm Water, Natto and Yogurt: Her Interest in Gut Health

In an August 2025 interview with MANTANWEB, Seino described her morning routine.

The first thing she does after waking up is drink a cup of warm water.

She also spoke about being interested in the Japanese concept of chokatsu, a popular term referring to habits focused on digestive and gut health.

As part of exploring this interest, Seino decided to make an effort to eat natto every day. Natto is a traditional Japanese food made from fermented soybeans, known for its distinctive flavour and sticky texture.

She also consciously includes yogurt in her diet.

Both natto and yogurt are familiar fermented foods in Japan. For Seino, they represent practical choices within her regular meals rather than a complicated dietary programme.

Her comments reflect an interest in learning about food and selecting habits that suit her lifestyle while continuing to enjoy eating.

Her interest in everyday food choices, combined with her enjoyment of tending plants, makes her morning routine feel both personal and grounded in simple pleasures.

Enjoying Food and Running 3–5 Kilometres: Her Approach to Everyday Fitness

In a 2025 interview with Biteki, Seino explained that she loves eating and places importance on enjoying her meals.

When thinking about physical fitness, she prefers an approach that allows her to enjoy her favourite foods while making time to move her body.

One activity she enjoys when her schedule allows is running. She mentioned distances of approximately 3 to 5 kilometres and, at the time of the interview, aimed to run for at least 15 minutes.

Rather than imposing an identical daily training schedule on herself, she prefers to exercise in ways that work with her commitments and mood.

Her approach differs depending on whether she is preparing for an action role or simply enjoying physical activity in her own time.

Intensive action training requires dedicated technical practice, while everyday running or walking provides an opportunity to move at a pace that suits her.

For Seino, enjoying food and finding an enjoyable way to stay active are both important parts of maintaining a balanced lifestyle.

5. Nana Seino's Fitness, Pilates and Sleep: Lessons from Kingdom and a Back Injury

Understanding Seino's wellness habits means looking closely at the physical preparation behind her action performances.

Her graceful screen movements are supported by months of fundamental training, while a lower-back injury in her twenties encouraged her to reconsider how best to look after her body throughout a long acting career.

Training for Kyou Kai: Swordsmanship, Core Strength and Body Control

Kyou Kai in Kingdom is a warrior whose distinctive fighting style combines precise swordsmanship with movements resembling dance.

Although Seino already had considerable action experience, portraying the character demanded a special approach to movement.

In a 2024 VOCE interview, she described spending approximately four months developing the physical foundations for the role, including abdominal exercises and sword training.

Working closely with the action team, she repeatedly practised the posture, movement and fighting style needed to bring the character to life.

Kyou Kai's action is defined not only by strength but also by fluid transitions between movements. Every stance, turn, step and sword motion contributes to an overall sense of continuity.

For Kingdom: Return of the Great General, Seino spoke about preparing physically, technically and mentally for the battle scenes involving Hou Ken, played by Koji Kikkawa.

Even after finishing a production, she likes to keep her action skills fresh.

She has spoken about continuing activities such as running, mobility-focused training and practising kicks so that she can confidently take on new physical challenges in future roles.

For Seino, action remains an essential part of her identity as a performer, and she continues to value opportunities to refine and express those skills.

A Lower-Back Injury in Her Twenties: Learning to Understand Her Body

Behind Seino's spectacular action performances is also a period when a physical injury caused considerable uncertainty.

In a 2025 interview with Mynavi News, she discussed injuring her lower back while undertaking intensive action training in her twenties.

After receiving an explanation of her condition from a medical professional, she worried about whether she would be able to continue performing action, something she considered one of her greatest strengths as an actress.

The experience, however, also became an important opportunity to reconsider how she approached her body.

Previously, her main focus had often been to devote herself fully to the training immediately in front of her. Afterwards, she became more conscious of understanding her physical condition and preparing for a long career.

She began attending a gym with greater attention to her body's needs and studied how muscles work and how to care for herself appropriately.

Taking on projects outside action also helped her discover different possibilities as an actress.

Over time, her philosophy developed into a balance between pursuing demanding challenges and respecting what her body needs to keep working sustainably.

Pilates Ring Exercises at Home, Bathing and Her Ideal of Ten Hours' Sleep

In addition to demanding professional action training, Seino enjoys exercising at home.

One piece of equipment she discussed in a 2025 Biteki interview was a Pilates ring.

A Pilates ring is a circular exercise accessory that can be pressed between the hands or legs and incorporated into movements requiring controlled positioning.

Seino used the exercise cards supplied with her ring as a guide, experimenting with different movements.

Although some exercises felt challenging, she enjoyed trying them and practising at her own pace.

Sleep is another aspect of daily wellbeing she values.

She has said that after a particularly good night's sleep, she sometimes notices that her skin seems smoother or feels different from usual. Ideally, she would love to be able to sleep for around ten hours.

That figure represents her personal ideal, rather than a claim that she actually sleeps for ten hours every night.

She also enjoys warming up and working up a sweat through exercise or bathing.

Intensive practice for a role, enjoyable movement at home and time for proper rest all have a place in how Seino approaches her busy life.

6. Nana Seino's Hobbies and Emotional Wellbeing: Plants, Games, Korean Dramas and Solo Travel

Away from acting and fitness, Seino has a variety of interests that bring enjoyment to her personal life.

From looking after plants and playing video games to watching Korean dramas, exploring crafts and travelling abroad, her curiosity is evident in the way she spends her free time.

Twenty to Thirty Houseplants and Pachypodium Gracilius: The Joy of Growing Plants

One of Seino's hobbies is caring for houseplants.

In 2025, she revealed that she had approximately 20 to 30 plants at home.

She enjoys more than simply watering them. Touching the leaves, checking how they are growing and noticing small changes have become pleasant parts of her daily routine.

In a 2023 HugMug interview, she also spoke about enjoying activities such as replacing soil and pruning plants.

A particularly memorable treat for herself was learning about the caudiciform plant Pachypodium gracilius, often called gracilius in Japan, from someone knowledgeable about plants.

The plant is recognised for its rounded trunk and distinctive sculptural appearance. Seino enjoyed seeing it in person and learning about techniques such as repotting.

Discovering new information from someone who shares her interests is another source of enjoyment for her.

She has also expressed an interest in learning practical skills such as using a sewing machine and preparing fish, reflecting her curiosity about making and doing things for herself.

A Competitive Gamer Who Also Loves Korean Drama Impressions

Seino has described herself as a very competitive person.

In a 2024 VOCE interview, she admitted that losing an online game against friends could motivate her to practise secretly at home before challenging them again.

Her determination while gaming echoes the persistence she brings to refining action techniques.

She also enjoys Korean dramas, mentioning series such as The Penthouse, Marry My Husband and Queen of Tears.

In the same 2024 interview, she spoke about enjoying quiet time watching favourite Korean dramas amid her busy schedule.

Interestingly, while she enjoys regular routines such as caring for her plants, she has also admitted that arranging appointments or planning trips far in advance can be something of a challenge.

She takes her acting seriously while finding space in everyday life to enjoy her interests at her own pace.

Her Solo Trip to Hawaii: An Awkward First Visit and the Confidence to Try Again

One story that reveals Seino's adventurous personality comes from a solo overseas trip in her early twenties.

During a 2025 appearance on the TBS Radio programme Jun Kan's Magic Hour, she recalled travelling alone to Hawaii at around the age of 22 because she wanted to learn English.

Her first visit lasted approximately eleven days. Ordering food in English at restaurants made her nervous, especially when she had to repeat herself several times to be understood.

Eventually, she felt increasingly anxious about ordering meals and found it difficult to eat as she normally would. Looking back, she said she had lost around two to three kilograms by the time she returned to Japan.

Rather than allowing the experience to discourage her, Seino travelled to Hawaii alone again the following year.

This time she stayed for approximately two and a half months, experiencing local life while staying with friends and in condominium accommodation. Gradually, she became more confident ordering meals in English.

Now in her thirties, Seino has spoken about wanting to continue trying new experiences while balancing her professional commitments with family life.

Action performance, skincare, houseplants, games, Korean dramas and overseas travel all reveal different sides of the same curious, determined and engaging person.

Conclusion: Nana Seino's Beauty and Wellness Philosophy Is About Balance, Curiosity and Continuing to Grow

Looking at Nana Seino's beauty and wellness habits reveals a collection of relatable everyday practices: moisturising dry-prone skin, using sheet masks and all-in-one skincare, drinking warm water in the morning, enjoying natto and yogurt, running, exercising with a Pilates ring, sleeping and bathing.

In skincare, she values discovering products that suit her and using them consistently. In her thirties, she has also become interested in exploring new makeup colours and textures.

Her approach to eating combines simple food habits with an appreciation for enjoyable meals, while exercise remains something she adapts to her time and circumstances.

Her preparation for Kingdom involved months of demanding action training, and her experience with a lower-back injury helped her understand the importance of looking after her body throughout a long career.

Outside work, she values movement at home, good sleep, family time and hobbies that range from houseplants to games, Korean dramas and solo travel.

Since marrying Toma Ikuta and becoming a mother, Seino has continued to pursue acting while making room for the people and activities that matter to her.

What stands out about Nana Seino is her willingness to immerse herself in the things she loves while remaining attentive to the changes in her body and everyday life. Enjoying beauty, finding a comfortable balance between food and movement, making time to rest and embracing new experiences all contribute to the distinctive lifestyle she has created for herself.

References and Further Reading

• MANTANWEB — Nana Seino on her modelling debut, warm water, natto, yogurt and morning routine (2025, Japanese)
• VOCE — Nana Seino on dry skin, sheet masks, action training, Korean dramas and gaming (2024, Japanese)
• HugMug — Nana Seino and Anne Watanabe on moisturising, all-in-one skincare and enjoying plants (2023, Japanese)
• Biteki — Nana Seino on makeup, eating habits, running, Pilates ring exercises and sleep (2025, Japanese)
• Mynavi News — Nana Seino on her back injury, family life and outlook as an actress (2025, Japanese)
• TBS Radio / radiko news — Nana Seino on solo travel to Hawaii and her experiences abroad (2025, Japanese)
• Shiseido — The Collagen Beauty Jelly launch and Nana Seino's advertising campaign (2026, Japanese)

Note: This article is based on publicly available information and interviews with Nana Seino. The beauty routines, exercise habits, products and advertising appearances mentioned reflect information available at the time of the original interviews or announcements. Please refer to individual product labels and instructions when choosing cosmetics or dietary supplements.