Minoru Chiaki is a supporting character in Twilight Out of Focus who serves as an assistant director, often referred to simply as the AD, within the high school film club. He is part of the crew led by third-year student Jin Kikuchihara, working alongside other members such as the cameraman Isao Tsuchiya, the record keeper Rudy, and the visual effects specialist Rei Inaba. Chiaki is identifiable by his cheerful demeanor and his distinctive green hair highlights.

His role in the story is primarily as a background figure who helps with the production of the club’s films, particularly during the second story arc, Afterimages in Slow Motion, which focuses on Jin and Giichi Ichikawa. Chiaki contributes a lighthearted presence among the crew and is observant enough to comment on the attractiveness of actors in other projects, such as noting how handsome the lead actor of a BL film appears. His motivations center on supporting the club’s filmmaking efforts, and he exhibits a friendly and easygoing personality that helps maintain a positive group dynamic. Beyond his duties as AD, no further personal background or character development is depicted in the anime. His abilities are implied through his technical role in film production, though specific skills are not elaborated upon.