Koko Jidai ni Gomandatta Jou sama to no Dousei Seikatsu wa Igaito Igokochi ga WarukunaiLiving together with the queen from my high school days; 高校時代に傲慢だった女王様との同棲生活は意外と居心地が悪くない; Koko Jidai ni Gomandatta Jou sama to no Dousei Seikatsu ha Igaito Igokochi ga Warukunai; Living Together with the Queen from My High School Days Who was Arrogant, Surprisingly isn't That Uncomfortable; Cuộc sống chung với nữ hoàng từng kiêu ngạo hồi cấp ba, không ngờ lại khá dễ chịu.

"Hey, wanna do it?" 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...!?