Kaito Sakashita

Kaito Sakashita is a character who first appeared in the Chapter 7.X Omake Chapters. He is a former elementary school 6-2 classmate and childhood friend of Kenji Yamashita.

History
According to Kenji's POV, Kaito was always bullied in the class. Kenji used to always protect him, and the former considered him a minion.