Kizao Kiza attends school as a classmate of Shota Ohara, originating from a notably affluent background. His family's financial standing allows him to obtain any possession he desires without restriction. Within their peer group dynamics, Kizao consistently strives to ingratiate himself with Tsuyoshi Saigo, the dominant figure nicknamed Godzilla who exhibits bullying tendencies. This conduct establishes Kizao's recurring role as an individual seeking validation from those wielding greater social power. His interactions occur primarily within Shota's school environment, engaging with recurring peers including Hakase and Yoshiko Koizumi.