Quick answer — Akihito Ougiyama worked on The 100 Girlfriends Who Really, Really, Really, Really, REALLY Love You Season 3 (Art Director), The Quintessential Quintuplets 2 (Art Director), The 100 Girlfriends Who Really, Really, Really, Really, REALLY Love You Season 2 (Art Director) and 3 more anime.
Akihito Ougiyama worked on The 100 Girlfriends Who Really, Really, Really, Really, REALLY Love You Season 3 (Art Director), The Quintessential Quintuplets 2 (Art Director), The 100 Girlfriends Who Really, Really, Really, Really, REALLY Love You Season 2 (Art Director), The Quintessential Quintuplets Movie (Art Director), The 100 Girlfriends Who Really, Really, Really, Really, REALLY Love You (Art Director), AZUR LANE (Art Director).