Yuka's best friend Aoi has changed her blood phase. She picked up Punirunzu's baby "Bevirun", but she didn't know what to do, so she came to Yuka for advice. She teaches Yuka Airun how to take care of Aoi Nippon Punirunzu, such as taking a bath, eating, and puffing. Then Bebilun grew into Kiirun. She takes care of Aoi in the same way, but for some reason she doesn't get used to listening to him. Aoi begins her special training with Yuka and Airun, but...