introduction: Tsukishiro was just an ordinary young man… until he met a witch one night. Without warning, she cursed him. When he opened his eyes again, he was in an impossible place: an infinite library where each book contained an entire world. Now, Tsukishiro had become the library’s new caretaker. Even if he leaves, his soul belongs to it. Inside the books, there are warring kingdoms, doomed villages, forgotten monsters, and stories that should have remained sealed. But there’s a problem. Some stories are changing. Characters are starting to notice things they shouldn’t. And some books… seem to be watching back. With only a mysterious bookmark in hand, Tsukishiro must walk through the worlds written in ink to discover one thing: Who created the Infinite Library? And who is rewriting its stories?