Aoshima serves as a supervisor for Harumichi Bouya’s class at Suzuran All-Boys High School, maintaining an authoritative role over students within the institution. His affiliation with the school positions him as a figure of structured oversight, though his personal history, individual motivations, and direct interactions remain unspecified in available sources. The documented media does not expand on his participation in story arcs, connections to other characters, or evolution across seasons, films, or spin-offs. His narrative impact, contributions to central plotlines, and background within the series are similarly unexplored, leaving his characterization anchored solely to his supervisory function.