Ayano Tateyama/Relationships

Shintaro Kisaragi

 * Classmate and close friend, he sat next to her in class. Despite his initially cold attitude, they eventually became good friends. After her suicide, out of guilt, he stopped going to school in the first year of high school, becoming a hikikomori.

Kenjirou Tateyama

 * Her father, she was devastated after discovering his research on Takene and Haruka which she considered cruel.

Ayaka Tateyama

 * She was close to her mother, and seemed shocked during "Ayano's Theory of Happiness" when she found out her mother had died.

Takane Enomoto

 * Before her suicide, she was Takane's friend. She told Takane to stop hiding her feelings from Haruka.

Tsubomi Kido

 * Ayano was told by her mother to be a "big sister" for Kido, Kano, and Seto, as she was the one taking care of them in the orphanage. Ayano followed her wish and started to become friends with the three of them, what turned out to be difficult, as they thought of themselves as "monsters", due to their eye abilities. Eventually, Ayano came up with the plan to create a secret club of heroes and gave them their hoodies as a present.

Shuuya Kano

 * Ayano was told by her mother to be a "big sister" for Kido, Kano, and Seto, as she was the one taking care of them in the orphanage. Ayano followed her wish and started to become friends with the three of them, what turned out to be difficult, as they thought of themselves as "monsters", due to their eye abilities. Eventually, Ayano came up with the plan to create a secret club of heroes and gave them their hoodies as a present.

Kousuke Seto

 * Ayano was told by her mother to be a "big sister" for Kido, Kano, and Seto, as she was the one taking care of them in the orphanage. Ayano followed her wish and started to become friends with the three of them, what turned out to be difficult, as they thought of themselves as "monsters", due to their eye abilities. Eventually, Ayano came up with the plan to create a secret club of heroes and gave them their hoodies as a present.

Haruka Kokonose

 * Haruka was, like Takane, a friend of Ayano's. He also helped tutor her since her grades were poor.

Hiyori Asahina

 * Ayano's aunt, it is not shown if the two ever met.

Amamiya Hibiya
When Hibiya was locked in the loop, Ayano encouraged him.