Math teacher Amamiya is unlucky in love. Now, he has been transferred to an all-boys school devoid of the fairer sex. On top of that, an adoring pupil, Mifune, confesses to having a crush on him, and Amamiya has to turn to another student for protection. Kijima, the "protector," has his own motives. Amamiya then decides to play the doting teacher, and encourages Mifune's affection while eliciting a warning from Kijima: Stay away from Mifune, or else. What Amamiya does not realize is that sheepish Mifune's wolf persona is about to reverse his luck in love.

Amamiya can't deny that he's attracted to Kishima, but he's determined to keep his distance. Unfortunately, Mifune is equally determined to make Amamiya his. Can Kishima be the impartial buffer that Amamiya needs, or does he have ulterior motives?