One day, Taiyou, a popular guy because of his good looks, was asked by a senior student at his part-time job to take care of his cousin, Tsukihiko, who is attending the same university as Taiyou. However...

Harumoto, advisor to yakuza boss Taniguchi, is known for his street smarts and short temper. But he has a softer side, and when he meets Mizuta sensei in a nightclub, he begins to dream of romance with this...