Book-chan

Looks like she has one eye covered but actually both are visible.

Left eye

Has no fingers so it's difficult for her to write on her own.

Book form

Contains an encyclopedia of grotesque creatures.

Wishes written on her body will come true. However, it does not work if the wish isn't specific enough or is something impossible.

Example: ❌ 〇〇 cannot move. ⭕ 〇〇 cannot move voluntarily.

Can use her saliva as ink, but finds this embarrassing to do.

Can produce the creatures from the encyclopedia out of her sleeves.

Has a nasty personality.