The older twin sister of the infamous "suicide lovers" pair in town. Kaoru is soft-spoken, and appears to be tied down by her extremely possessive younger twin brother, Hayate.
Student
Character: Hayate Gotouda
The younger twin brother of the infamous "suicide lovers" pair in town. He behaves in a hostile manner to outsiders, and is suspected of the murder of his own grandmother.
Character: Lawrence
Lawrence is the leader of a group of young survivors who formed a base in a high school. He is clever and responsible, which earned him the trust of the survivors he leads.
Character: Haruka Fujisaki
Haruka is Konatsu's classmate, and also the class president of her class. Haruka has an outgoing and cheerful personality. He is also very kind and helpful to Konatsu.
Media: Aishite Kudasai, Sensei
Nakatani Ayano, a chemistry teacher in school noticed that the perfect student Kitou Hijiri had failed tests only in her class; he had sent in empty scripts. To address this issue, Ayano had sent for Hijiri to meet her after class. Little does she know what is in the mind of her student.
Character: Kitou Hijiri
Kitou Hijiri is a smart, handsome, and capable student. He is the valedictorian of his grade. Strangely, he failed his test only for Ayano's class by submitting an empty script. Turns out, Ayano holds a special place in his heart.
Character: Takaya Motoi
Motoi is a classmate of Koto Harukawa. He is the class representative of his class. When Koto is bullied, he would often step up for her, helping her through her ordeals.
Character: Kayoko Kita
Kita is a classmate and close friend of Haru. She has harbored feelings for Haru for a long time. Kita is known to be pretty, intelligent, and kind. Her father is the chairman of the school. All in all, a perfect student.
Character: Noah Sandborn
Noah is a teenage boy who recently moved in next to Claire as her neighbour. He appears friendly and helpful, and is quick to befriend Claire and her family.
Character: Hayato Manabe
Hayato is student who happens to be Naho's crush. He excels at soccer. Although Hayato returns Naho's feeling, he prefers to focus his attention on soccer training, and hopes that Naho will wait for him.
Yanderes and Obsession 