GutterGoblin's manga / #undercut(12)

On his way home after an evening out drinking, Shiratori Tomoe meets a roughed up man named Zen. He takes him home to tend to him and ends up sleeping with him.

Kentarou, a dull college student who has never had a girlfriend, experiences memory loss after hitting his head. He wakes up in an unfamiliar bed next to a handsome stranger and is left questioning who the man is and what happened.