Skirt no Naka wa Kedamono Deshita.

Kominami Shizuka is really a mild-mannered university student who is having difficulty adapting to city life. 1 day, she meets Kirishima Ryou, another student who projects the picture of your cool older sister. The 2 hit them back, but Shizuka is shocked when Ryou tries to seduce her. Shizuka initially assumes that Ryou can be a lesbian, but Ryou is certainly a guy who dresses being a lady.

 

Added 12 series