Despite having a fever, Fushihara is working overtime at the office again today. Taking notice of this, Yuurei-chan yells "You're gonna work yourself to death!" and proceeds to try and persuade Fushihara to leave. When Fushihara tells her that her being there with her motivates her, Yuurei-chan proposes that she go home with her, so that she can finish her work at home. Easily swayed by the ever-so-cute little baby ghost, Fushihara promptly agrees to her proposal and takes her home at once.

Fushihara and Yuurei-chan have taken a black cat named "Myako" in from the rain. But it looks like Myako isn't just any ordinary black cat. To their surprise, Myako is actually a bakeneko, a ghost cat from Japanese folklore that is able to transform into a human. Myako takes on her human form, so that she may repay Fushihara for her kindness, and Fushihara gladly welcomes her into her home. Later, when Fushihara is doing overtime at the office, Yuurei-chan and Myako begin fighting over who gets to help her with her work...

One night, Fushihara discovers that her next-door neighbor Kurahashi-san has been living with a little ghost maid called Lily. Owing to the fact that they can both see ghosts, Fushihara and Kurahashi-san quickly become friends. While Kurahashi-san leads a slovenly lifestyle working from home as an illustrator, Lily spends most of her days scolding Kurahashi-san in utter disgust for her slobbish behavior. Despite this, the two seem to be getting along one way or another...

The streets are covered in a blanket of snow. Even though Myako can't stand the cold, she can't help but feel jealous when Yuurei-chan goes to play outside in the snow with Fushihara in the snowman outfit she bought for her. After concealing these feelings from the others, Myako stays behind to house-sit for Fushihara when suddenly Yuurei-chan appears excitedly back from outside at the front door. She's brought a little something to lift Myako's spirits. But what might it be...?

An unknown sender has been sending letters to the apartment every day since New Year's. All of which demanding that they move out. Thinking this is just somebody's idea of a prank, Fushihara doesn't think much of it at all. But then one day, instead of a letter, what do they receive but a package in the mail! Fushihara and the two little ghosts are frozen stiff as something inside the package begins to stir. What might be about to come out...?