*Yuu Yuutani (優ゆう谷たに 優ゆう, Yūtani Yū) is the main protagonist of Bad Girl manga and anime series. She is a first-year Fujigasaki Private High School student; she has faith beyond admiration in Atori, the school's madonna and chairperson of public morals, and to become a delinquent to catch her eye.

Birthday: September 9 Height: 145.5 cm Weight: Secret Hobby: Planting, Atori Mizutori-senpai Special skills: Cooking, DIY Favorite: Atori Mizutori-senpai Family structure: Father, mother, herself Future dream: Grow big, become a companion Favorite four-character phrase: Atori Mizutori (水鳥亜鳥) Club activities in middle school: Book Club (2 people) Nickname: Thermal Sensation Bagriman Bedtime: 10:30 PM Wake-up time: Before 5:00 AM Most viewed videos: Pet video, craft video If she had to take just one thing to a deserted island: Suzu-chan Passion: Her height A secret between them: In fact, she admires Atori Mizutori-senpai

Despite her best efforts to appear rebellious, Yū is an honor student at heart.

She excels academically and earns high praise from teachers.

Her attempts at acting "bad" are more endearing than intimidating, making her a standout in the classroom.

Yū's adoration of Atori Mizutori runs deeper than a simple crush—it's almost a form of worship.

She is driven by the hope that Atori will notice her, motivating both her academic and rebellious pursuits.

This unwavering admiration shapes every aspect of her school life.

When Atori gets close, Yū becomes overwhelmed and starts hyperventilating,

always with her signature "Kohyu" sound—an adorable (and slightly embarrassing) reaction that her friends find amusing.

Yū Yūtani plays a central role in "Bad Girl" as the embodiment of earnestness mixed with youthful rebellion.

Her journey is both touching and humorous, inviting readers to root for her awkward but heartfelt quest for recognition.*