Mankitsu Shitai Jouren-San

Mankitsu Shitai Jouren-San summary:

Izumi, a university student part-timing at a manga cafe, got curious about a regular customer. Her name is Honami, a high school girl who's been coming to the manga cafe recently. This defenseless and seemingly cute girl who he can't take his eyes off of has a secret...!?This is a slightly naughty, heartful love comedy where this gentle pair will get to "enjoy" their youth to the fullest!!(Source: Comic Newtype)