Yuzuki is an aspiring manga artist. She usually draws normal girls' manga, but this time she's trying her hand at erotic manga for the first time! However, even though she has a boyfriend, Yuzuki suffers from premature ejaculation and has almost no sexual experience, so when it comes to drawing erotic scenes, her pen stops moving. This time, she makes her stepbrother, who she doesn't get along with, work hard to complete her erotic manga!