【Waterfall】A story about an office worker taking a bath with her cat.

One day, office worker Enka (Madoka) picks up a kitten. But what she thinks is a kitten turns out to be a beautiful junior high school girl with silky black hair and a sailor suit. She says it’s a blood-sucking cat. They start living together, but they get into a fight and Black runs away from home. She manages to bring him back, but he’s dirty, so she takes a bath with him. This is the third volume of the original yuri manga. You can also read it as a standalone.