Goth Loli-chan to Mondaiji-kun

The high school girl Ayame's love of gothic lolita style is found out by Mizuno Hiro, a boy known as the school's biggest delinquent. Ayame fears that her hobby will become exposed at school, or suffer some other terrible consequence, but for some reason, Hiro invites her on a date instead. As they spend time together, Ayame begins to feel that he is not as bad as he is rumored to be.

(Source: Natalie, translated)