Imagine a senpai you don't get along with. Then imagine having to work with that senpai and live in the same apartment! With no vacancies in the singles dorm, newbie cop Kaitou has no choice but to move in with his senpai from the koban, Himuro. While he's beautiful and excels at his job, Himuro has a mouth on him and he and Kaitou fight like cats and dogs. But then one morning: surprise! A sudden embrace and a kiss!