The Iura siblings have an interesting relationship that gets even more interesting when... a boy comes between them in a way neither one of them wants! What are the Iuras to do?

Nakamine-sensei may be oblivious, Terajima-sensei may be strict, and Yasuda-sensei may be a hopeless pervert, but they all have one thing in common... They're all teachers at Katagiri High!

A lot goes on in the Hori household. The family comes together, the family fights, the family makes up... But no matter what happens, it's always fun.