Ever since I was a kid, I've been a timid, bullied character. But this spring, at a prep school, I got a super cute high school girlfriend. Then one day, while we were studying together in my room, suddenly, our doorbell was rung in a vulgar, rapid-fire manner. Wondering who it could be, I opened the door to find the locally feared, even T-senpai acknowledges his reputation, the most wild skinhead in the prefecture, the new character, Wani-guchi-senpai, barging in...!