Anon decides to make the most of the situation and enjoy the magic of the moment. After all, how often does he have a chance to spend time with a girl as shy and cute as her? For a moment, he feels that he can almost recall something his past.

It was lonely.

"Why don't I help you look for that book?", he offers.

Koakuma blushes and shakes her head.

"It would be inappropriate for myself to request the assistance of a guest."

Anon pushes on. "I don't see anything wrong with the librarian showing a guest around the library."

Koakuma cocked her head with a puzzled expression.

"How did you know I was the librarian?"

Anon considers her question for a moment. How did he know? For some reason, he is also sure that the purple-haired girl he met earlier is "Mistress Patchouli", who Koakuma mentioned. He shakes her head and smiles at the bat-winged girl.

"Don't mind it. In any case, I would enjoy helping out. Consider this a request from a guest. What was the title of the book?"

Koakuma opens her mouth for a moment, before closing it and looking down. She is visibly blushing.

"Theoretical Boundary Binding and Intervention."

Anon carefully considers the word "boundary". For some reason, the term feels extremely important.