Saku Akechi

Saku Akechi serves as a classical literature teacher and film club advisor at Sakuragaoka High School, a role he fulfills with quiet dedication before eventually ascending to the position of principal. As a former close friend of the protagonist Haruki Serizawa's late older brother, he has long maintained a unique bond with Haruki—part mentor, part confidant. Though his outward demeanor is reserved and at times stern, Akechi carries a deep sense of guilt rooted in past events, which quietly fuels his unwavering commitment to his students. Whenever they find themselves at a crossroads, he offers measured wisdom and gentle encouragement, making him an indispensable guiding force in their journeys of self-discovery and growth.