From Osuwari Team:
Himari Wataya is "maybe" dating her senpai, Atari Hoshikawa. Hoshikawa is the top student of their school but he’s also well-known among the students as the the Super S (Sadist) “Prince of Disdain”. What is she supposed to do when he teases her mercilessly and he’s always angry with her? When she’s pushed to the edge, Himari finds out that she might not be as submissive of an M (Masochist) as everyone assumes!