The classmates of Class 3-A. Among them is the person who drove Reina Kageyama to her death...

The culprit who posted malicious comments and filmed fake videos targeting Reina Kageyama.

High pride and a modern girl: A member of the dance club, she has a flashy personality and cares deeply about how others perceive her. She takes pride in being a class leader. Intense jealousy and emotional volatility: She was shocked when her best friend suddenly distanced herself, revealing a sensitive side prone to intense jealousy. This emotional instability led her into the dangerous behavior of posting malicious comments on social media. Fundamentally honest and caring: While she acted as a troublemaker who pushed things in a bad direction, as the story progresses, her true feelings of valuing her friends become clear, showing her growth.

Passionate and serious: A stoic individual who truly loves his students and is prepared to sacrifice everything to save them. Cold and extreme: A ruthless side that chooses any means necessary to achieve his goals, physically overwhelming students and cornering them with fear and psychological pressure. Logical: Possesses high intelligence and information-gathering skills, with a deep thoughtfulness that confronts the darkness of social media and the pathologies of modern society head-on.