Mizuki Yokoyama

Driven by a tragic and forbidden romance, this student was the catalyst behind the widespread teacher-bullying epidemic within class 3-4. Once inseparable from her best friend Miyabi, her life took a devastating turn following a secret, intense relationship with her second-year instructor, Saitou-sensei. Despite a mutual and profound love between the two, the weight of their affair ultimately led to her tragic suicide, leaving a lasting impact on her classmates.