Tsukune Aono finds himself enrolled at a mysterious boarding school with a shocking secret, and his life may never be the same.

Moka's blatant affection for Tsukune earns him some jealousy from the school's other students; a succubus decides to take matters into her own hands.

Mischievous young witch Yukari stirs up trouble between Moka and Tsukune, but a confrontation with a trio of lizardmen may change her outlook.

The boys of Moka's fan club decide to get rid of Tsukune, who is embarrassed that he can't protect his lady friends. Moka believes Tsukune wants to return to the human world.

Because of water's effect on vampires, Tsukune's interest in the swim club causes problems for Moka; trouble comes during a meet.

A rumour goes around that Tsukune is a creep who steals looks at other girls; Kurumu and Yukari try to clear his name.