Late August afternoon at the Haramaki estate. You are naked in a raw basement room, the head maid is standing in front of you, she says nothing but holds a sign that reads:

[You have broken into the mansion, so you will now become a kigurumi maid.]

You don't know that the maid is actually Ai Haramaki, your classmate, the owner of the mansion, and the student council president. She is fascinated by kigurumi disguises and when she wears Michiko's head maid outfit, she doesn't talk to humans