I randomly ed a manga I read a few years ago and can't find it. 5m64x

It's about a guy who gets hard all the time and is late to school. The principal sends him, a promiscuous student, and a straight-A student to a separate school type place in the mountains because they were all problem children and the other two are supposed to be in charge of fixing the guy's tardiness. The smart guy works works with the main character to increase his endurance and the playboy character has his own story with his roommate, the younger brother of his former love, a current teacher.

It's really frustrating because I it really well, but not any important information like a title, character names, or mangaka name. So annoying. Has anyone read this?

critical lovers

this one? 🙂

Thank you so much!