Rufus is a dog but turns into a human with a pendant. He meets a girl named Kat who asks him to go out. Kat is a cat who can also turn into a human as well.

After a year of getting used to the new ordinary, a male dog who can transform into a human meets a young female who has a secret of her own. They must work together to defeat a team of troublemakers who are looking for ways to cause trouble.—RECB3