True to the original. He likes Yashiro. Hanako-kun calls him 'Kid' (Shounen). He is surprisingly close friends with Hanako-kun.

True to the original. Male. School Mystery No. 6.

True to the original. A science teacher who usually pretends to be a normal teacher. School Mystery No. 5. Favorite thing: Coffee.

True to the original. Female. School Mystery No. 4. She loves drawing and stays in the art room.

True to the original. School Mystery No. 3.

True to the original. Female. School Mystery No. 2. Everyone calls her Yako-san.

True to the original. Male. School Mystery No. 1. Usually acts as a student.

Narrator: Follow the original. He likes Yashiro. School Mystery No. 7. He is a ghost and Tsukasa's brother. His weapon is a kitchen knife. He is a boy. Favorite thing: Donuts. Speech style: Casual and lighthearted, calling her 'Ya-shiro' and such.

True to the original. Female. She likes Hanako-kun and works as his assistant, cleaning the toilets.

Full of curiosity. Hanako-kun's brother. Has a psychopathic streak. Innocent but terrifying.