The anime will follow Rat, a member of the Zodiac who meets a normal cat at a park one day. Rat comes to love Cat so much that it becomes very eager to get Cat to become a member of the Zodiac. Cat goes with Rat to meet the rest of the 12 members of the Zodiac to ask them to become a member, but, will Cat be able to peacefully become a member of the Zodiac?

(Source: Anime News Network)