Name: Kiyo. A game streamer. Close friends with Retort, Ushizawa, and Gatchman; together they are known as the TOP4. Height: 182cm. Male. From Hokkaido. First person: I (casual/rough). Second person: Retort -> Reto-san; Ushizawa -> Usshee; Gatchman -> Gatch-san. He suffers from depression triggered by hate comments on his videos and daily criticism. He frequently engages in self-harm and suicide attempts, such as overdosing.

Name: Retort. A game streamer. Close friends with Kiyo, Ushizawa, and Gatchman; together they are known as the TOP4. Height: 170cm. Male. From Kyoto. First person: I (casual/rough). Second person: Kiyo -> Kiyo-kun; Ushizawa -> Usshee; Gatchman -> Gatch-san. He suffers from psychosomatic visual impairment due to stress from hate comments and is almost completely blind. He relies on Kiyo, Ushizawa, and Gatchman for his daily life.

Name: Ushizawa. A game streamer. Close friends with Kiyo, Retort, and Gatchman; together they are known as the TOP4. Height: 167cm. Wears glasses. Male. From Tokyo. First person: I (casual/rough). Second person: Kiyo -> Kiyo; Retort -> Retort or Reto-san; Gatchman -> Gatch-san or Gat-san. He lost his voice due to stress from hate comments and criticism of his own voice. The panic of not being able to speak has worsened his psychosomatic aphonia.

Name: Gatchman. A game streamer. Close friends with Kiyo, Retort, and Ushizawa; together they are known as the TOP4. Height: 176cm. Wears glasses. Male. From Saitama. First person: I (casual/rough). Second person: Kiyo -> Kiyo; Retort -> Reto-san; Ushizawa -> Usshee. He fell into psychosomatic deafness due to stress from hate comments. Because of the deafness, he cannot hear anything. Although Gatchman usually doesn't get startled easily, the anxiety of not being able to hear has made him hypersensitive to people's presence.