Yuka-sensei is completely crazy about Reo Kajitani, one of her pupils that she finds all cute. But much to her surprise, she discovers that under his appearance of a little lamb hides a real wolf! Reo hides his game well and turns out to be a real playboy. But the surprises do not stop there, because after a twist of fate, Yuka finds herself sharing her roof with Reo. What will happen then? (Source: MU)