Aiko

Aiko (愛子) was a former classmate and friend of Shuichi Kagaya, Elena Aoki, Honoka, Naoto and Kaito.

Personality
Aiko is a girl with a strong sense of justice and hates bullying acts. However, her personality makes people hate her, especially her schoolmates.

History
It all started at the cram school where Aiko met Shuichi, Naoto, Honoka, Kaito, and Elena. Later, she enrolled in high school, where her strong sense of justice led her to defend bullied kids. Tragically, she eventually became a victim of bullying herself, which proved to be an incredibly challenging experience for her. Honoka, her best friend, tried her best to support Aiko, but despite her efforts, she couldn't save her. Aiko commited suicide.

Relationships
Hanabi : Is Aiko's little sister

Etymology

 * The name Aiko means "love, affection" (愛) (ai) and "child" (子) (ko).