Orphans Ryuichi and Kotaro are taken in by the chairwoman of Miyanomori Academy, on the condition that Ryuichi become a babysitter in the school's daycare.
When Ryuichi accidentally lets the kids trail him into the school halls, he gets a tongue-lashing from elite student Inomata Maria.
For some reason, class hottie Yagi is very interested in joining the babysitter club; the kids are going for a walk in the school yard when Takuma is seized by a strange man.
Ryuichi takes the daycare gang around to see the school's clubs; later, Ryuichi gets sick and has to stay in bed.
Second-year Inui visits the daycare room; Kirin, who is studying hard to be a witch, gets in a fight with Taka, who believes witches aren't real.
Playing in the garden on his day off, Kotaro discovers a little boy who happens to look just like Nezu; Ryuichi leaves his lunch in the daycare room, so Kotaro decides to bring it to him.
Koutaro Nishiyama
Ryuuichi Kashima
Nozomi Furuki
Kotarou Kashima
Yuuichirou Umehara
Hayato Kamitani
Yūko Sanpei
Taka Kamitani
Konomi Kohara
Kirin Kumatsuka