Yoshikawa Ai

Ishimori Uka is very shy and has a hard time making friends. When she was a middle school student, students made fun of her by calling her "stone". Around that time, she met Miura Kai ...

Yuri goes to a female novelist and tells her that she and two of her friends committed three murders. Yuri asks the novelist to write a story about them. Back when Yuri was a high ...