Cast: Kyouyama Atsuki

Murooka is an elementary school teacher who carries a secret: He likes little boys, and not in an othodox way! Because of this he must wear a "mask" to hide his motives. But what happens when a temporary teacher with the body of a school boy starts working at the same school? Will Murooka finally find love? And how will he deal with the beautiful female teacher who begins to fall for him? Not to mention when his first crush and uncle of his favorite student volunteers to help with the school play. Will Murooka ever find peace? Hilarity and general craziness ensue.

Imai, who belongs the baseball club, has feelings for his clumsy kouhai, Hikita. Hikita, whose face falls into a continuous scowl when he's nervous... That kind of Hikita is cute, nothing else to it.

"When you're this cute, I'm the one who has to be careful..."

Even while touching in this helpful senpai's heart of hearts, he wants to touch Hikita's naked body...?!