Ms. Library is the fictitious vice-president of the Student Council and most likely the assistant of Onigawara. She is also a guiding force in the game much like Onigawara and a minor/supporting character. Like Aki, players can name her, though Novella is her default name (Director's note: OR you can call her Aya since there's a scene where it shows similarity of Aya from Mad Father).

Library is a timid, but upbeat girl. Even so, she can get angry easily, and takes out that anger violently (shown in one of the bad endings). She is afraid of humans, but takes interest in Aki, hinting that Aki might not be human. This reason also supports the fact that she has a close bond with Onigawara, due to him not being a human.