XO Sisters 5
This is a new project that we've picked up starting at Vol 2.
Summary: Our protagonist, Jo Cheul-Hee, is a delinquent who enjoys picking fights and aims to take control of his new school where he gets transferred, but what he doesn't know is that it's an all girls school. Being the only male student there, everyone thinks he is gay!
Of course, that's only half the story, as the girls at his new school have a particular supernatural hobby.
Or start reading it from chapter 1 here