Lead role: Morioka

Protagonist, a young man in high school. He is shown to be friends with Morimoto and is the one who places the recorder in her bag. 

He is the one with the most lines, as we read his internal monologue while he listens over the conversations Morimoto had that led to her death.

He is a sneaky teenager, who is shown that curiosity gets the better of him.

Near the end, he begins to show genuine fear, as he hears the last conversation Morimoto has before her death.