This is a library that you can never see in reality—assuming you are in your right mind. This place holds nearly every book in the world, and its supercomputer is faster than anything else. And in this library... a cute girl lives.

Let me introduce her: Chichichi. She's a girl wearing a yellow dress, with adorable twin tails that bounce up and down like dancing jellyfish as she moves around the library.

This library welcomes visitors with deep desires. Chichichi serves as the librarian who guides them with knowledge.