Introduction
Yui Tadenuma (蓼沼優衣) is a Japanese gravure idol, model, and television actress known for her fresh “girl-next-door” image and rapidly growing presence in Japan’s entertainment industry. Born in Tochigi Prefecture, she first rose to national attention after earning Runner-Up in the prestigious Seikore ’20 competition, a well-known gravure talent search organized by Weekly Young Jump.
Since her debut in 2020, Tadenuma has become part of the new generation of gravure idols representing Japan’s modern modeling culture. Her early magazine appearances quickly gained attention for their youthful and natural style, which led to additional opportunities in digital photobooks, television dramas, and online media content.
Unlike earlier generations of gravure idols who focused primarily on magazine publications, Tadenuma’s career reflects a broader entertainment model. She balances editorial modeling, acting roles, short-form social media content, and digital publishing. This multi-platform presence has helped her connect with younger audiences while also building a growing professional portfolio within Japanese media.
Her approachable image, often described as the “national childhood friend” archetype by Japanese entertainment outlets, has become one of her most recognizable characteristics. Combined with her bright personality and expanding acting work, she continues to develop as both a gravure model and television performer.
Profile
Full Name : Yui Tadenuma
Native Name : 蓼沼優衣 (たでぬま ゆい)
Also Known As (AKA) : Tadeyui
Nationality : Japanese
Profession : Gravure Idol, Model, TV Actress, Talent
Industry Category : Japanese Entertainment, Modeling (Swimwear & Editorial), Television, Digital Media
Years Active : 2020–Present
Basic Information : Japanese gravure idol and television talent from Tochigi Prefecture who gained recognition after placing runner-up in Seikore ’20 and debuting in Weekly Young Jump magazine.
Date of Birth : June 20, 2002
Age : 23 (as of 2026)
Birthplace : Tochigi Prefecture, Japan
Current Residence : Tokyo, Japan
Height : 158 cm
Measurements : 78 - 60 - 87 cm
Shoe Size : 24 cm
Zodiac Sign : Gemini
Blood Type : A
Latest News
Yui Tadenuma continues expanding her entertainment career with television drama appearances and new digital photobook releases. Following her participation in the “NIPPON Gravure 57” feature in Weekly Playboy, she has appeared in drama productions such as Billion × School (2024) and continues releasing gravure content through major Japanese publishers.
Career
Yui Tadenuma’s career began to gain momentum in 2020 when she entered the Seikore ’20 competition. The contest is widely recognized as a launching platform for promising gravure talents, and Tadenuma’s runner-up placement quickly brought her into the spotlight.
Shortly after the competition, she made her gravure debut in Weekly Young Jump. Her first appearance alongside other Seikore finalists introduced her to a national audience and established her reputation as a promising newcomer in the industry. Later that same year, she achieved another milestone with her first solo gravure feature in the magazine.
Her early success opened doors to collaborations with major Japanese publishers including Shueisha, Kodansha, and Futabasha. Through these partnerships, she released numerous digital photobooks and editorial features that expanded her reach within the gravure community.
While gravure modeling remains a central part of her work, Tadenuma has gradually transitioned into acting and television appearances. She has appeared in several television dramas, including productions broadcast on networks such as Fuji TV, WOWOW, and TV Tokyo. Her roles range from supporting characters to guest appearances, reflecting a steady progression in her acting career.
In addition to television work, she has also appeared in music videos and online entertainment programs. These appearances help showcase her versatility and ability to move between different forms of media.
As her career develops, Tadenuma represents a new generation of Japanese gravure talents who combine magazine modeling, digital publishing, and television acting into a single evolving career path.
Career & Achievements
Agency / Management : Platinum Production
Debut : 2020 (Gravure debut in Weekly Young Jump)
Notable Works : Digital Photobooks “その光に、手を伸ばせ。”, “また少し、大人になった？”, “恋する時間。”, “TROPICAL SUNSHINE”, TV Drama “Billion × School” (2024)
Brand Collaborations : Shueisha, Kodansha, Futabasha, Tokuma Shoten, SPA!, FRIDAY Digital
Magazine Features : Weekly Young Jump, Weekly Playboy, FRIDAY, Manga Action, EX Taishu, SPA!
TV / Media Appearances : TV Tokyo “Ikiru toka Shinu toka Chichioya toka”, WOWOW “Ame ni Kieta Himawari”, Fuji TV “Billion × School”, Variety Show “Zenryoku! Datsuryoku Times”, YouTube “NOBROCK TV”
Awards & Recognition : Seikore ’20 Runner-Up, Selected for Weekly Playboy “NIPPON Gravure 57” feature
Career Highlights : Rapid rise after Seikore ’20, first solo gravure feature in Weekly Young Jump, expanding acting roles in television dramas from 2024 onward
Pageant & Recognition
Pageant Titles : Seikore ’20 Runner-Up
Competition Results : Runner-Up at Seikore ’20
Crown Year : 2020
Style & Public Image
Fashion Style : Youthful gravure style with soft natural makeup and casual contemporary fashion
Visual Signature : Clear complexion, gentle smile, petite and balanced figure
Public Image : “National childhood friend” type gravure idol known for her approachable and warm personality
Cultural Influence : Represents a new generation of gravure idols blending traditional magazine modeling with social media and digital content platforms
Education & Personal Interests
Education : High School Graduate
Languages : Japanese
Hobbies : Dancing, music listening, spending time with cats
Special Skills : Trumpet playing, TikTok video editing, expressive acting
Personal Interests : Acting, fashion styling, digital media creation
Fun Facts
Fun facts : Her nickname “national childhood friend” became popular after her first solo gravure feature in Weekly Young Jump.
Behind-the-scenes notes : She actively participates in content creation ideas for social media and short-form videos.
Lesser-known details : Before her gravure debut, she appeared in promotional material for the All Japan High School Girls Soccer Championship.
SNS
Official Website : https://www.platinumproduction.jp/talent/tadenumayui
Instagram : https://www.instagram.com/tadeyui
X (Twitter) : https://x.com/tadeyui
TikTok : https://www.tiktok.com/@tadeyui
YouTube : Guest appearances on entertainment channels including NOBROCK TV
Other Platforms : SHOWROOM livestream appearances
Image Source : SNS