Ijimerarekko ga Yarikaesu Hanashi

Kuroide Akito, who was bullied by delinquents because of a grudge against him, is rescued by a transfer student, Kanda Yuki, who offers him a "bullying revenge plan". As they have strategy meetings, Kuroide deepens his friendship with Kanda, but Kanda's true identity is Yuki Obayashi who used to be