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Kamiya, who loves small animals, discovers that Matsuyuki, a kendo rival from another school, can transform into a hamster...!?
Kuzuryu Hana, a former Hollywood actress, is enamoured by Chome, a Siberian dwarf hamster at a local pet shop.
Shiro is a black cat who loves her family very much. She loves them so much she wants to help them out in times of need and trouble, but it’s difficult to do this if she’s just a cat. So one night, she wishes on the moon to make her able to help, and the next day, she has turned into a human girl.