Maybe one side is open ... very similar, and there is a name next to it. At first glance, it is someone else's P-signature document.

AccelerRemarks: The second protagonist of the animated work "The Enchanted Forbidden Book Catalogue" seiyuu: Nobuhiko Okamoto Name: Unknown Gender: Unknown (the original novel is not given, and the animated version is biased towards men) Age: 15- 16 years old [1] Ability: Vector change Level5: haunters (?

Just look at the banned books catalogue.