Quick answer — Tsutomu Satou worked on The Irregular at Magic High School: Reminiscence Arc (Original Story), The Irregular at Magic High School The Movie: The Girl Who Summons the Stars (Original Creator), The Irregular at Magic High School: Visitor Arc (Original Creator) and 5 more anime.
Tsutomu Satou worked on The Irregular at Magic High School: Reminiscence Arc (Original Story), The Irregular at Magic High School The Movie: The Girl Who Summons the Stars (Original Creator), The Irregular at Magic High School: Visitor Arc (Original Creator), The Irregular at Magic High School (Original Creator), The Irregular at Magic High School Season 3 (Original Story), The Irregular at Magic High School THE MOVIE -Yotsuba Succession Arc- (Original Story), The Honor at Magic High School (Original Creator), The Irregular at Magic High School: Get to Know Magic Studies (Original Creator).