Living together with the queen from my high school days who was arrogant, surprisingly isn't that uncomfortable

Living together with the queen from my high school days who was arrogant, surprisingly isn't that uncomfortable summary: "Hey, wanna do it?" A romantic comedy about living together with a scarred queen in a relationship that's more than friends but less than lovers!! One late night, Yamamoto, a college student working part-time at a convenience store, reunites with Hayashi Megumi, his high school classmate and the most beautiful girl in their class. Known as the "Queen" for her strong-willed and arrogant personality, Yamamoto had always found her difficult to get along with. However, during a routine conversation, he notices painful bruises on her wrist. After learning that her boyfriend had been abusing her, Yamamoto decides to let Hayashi stay at his place...!?