Secondary school understudy Haru (Chizuru Ikewaki) salvages a feline that was going to be run over by a truck and finds the feline is really a ruler named Lune. Out of appreciation, Lune's dad, the Feline Lord, requests that she wed Lune. Haru is brought to the Feline Realm, where she begins to foster cat highlights. At the point when she is kept from leaving, the Nobleman (Yoshihiko Hakamada) and Toto, two sculptures that have mysteriously been given life, give help with acquiring her opportunity.