Hotaru Hinase, a first-year high school student, witnesses Saki Hananoi breaking up with his girlfriend. Hotaru finally agrees to date him after he always helps her, even though she doesn't really understand love and romance.

Transformada em garota-guaxinim, Michiru busca refúgio e respostas com ajuda do lobo-humano Shirou na zona especial de Animália.