Naoya, Kazuhiko, and Shinpei, were raised by their grandparents without the love of their parents. One day, Naoya's heart is shaken when Kazuhiko comes out of the closet. As a matter of fact, Naoya is also gay, but has been hiding and using his girlfriend Akira as a cover. One day, Jinko, who calls himself the half-sister of the three brothers, comes for a visit, and the strange lives of the quator will continue.