ETOTAMA

Amato Takeru, a high school student, has just moved to Akihabara. He's chosen a house with cheap rent, but with one particular imperfection: a hole in the living room floor. When he peeks into it, a girl pops out... And so begins the hectic life of Takeru and the cat Eto-musume, Nya-tan.

Takeru awakes in the morning to the smell of meat cooking, and finds Nya-tan preparing breakfast over a blazing fire. More and more Eto-shin girls have appeared from the hole in the living room, posing a threat to the peace and quiet of Takeru's life in his new home.

Nya-tan and Uri-tan have made new homes for themselves on Takeru's property (without asking him), and the three of them go shopping for new furniture. Nya-tan has no money, so she tries to get an advance on her paycheck at her part-time job...

Having been saved by Uri-tan, Nya-tan returns to the maid café Eto, where Usa-tan criticizes her character. A meeting of the Eto-shin whose characters don't stand out enough begins!

Takeru is stuck in bed sick, and the sheep Eto-shin, Mei-tan, determines that what he has is no ordinary cold. With all the Eto-shin going wild as Takeru's Sol/Lull rages out of control, Nya-tan and Mei-tan decide to battle the unknown virus.

Nya-tan tries to find some way to get Sol/Lull Seals without effort. Her master Shima-tan catches her trying to bribe Inu-tan and Key-tan with their favorite treats. Can Nya-tan win the battle with her enraged master?!