Souichi Masui (増井 壮一, Masui Sōichi, born 1966) is a Japanese anime director and storyboard artist from Urawa City, Saitama Prefecture (currently Saitama City). He sometimes works under the pseudonym Kazuma Mizukusa (水草一馬).
2026Rascal Does Not Dream of a Dear FriendMovieDirector
2024Girls Band CryTV showStoryboard Artist · 1 episodes2023Rascal Does Not Dream of a Knapsack KidMovieStoryboard Artist · Director2023Rascal Does Not Dream of a Sister Venturing OutMovieDirector · Storyboard Artist
2022Akiba Maid WarTV showSeries Director · Storyboard Artist · 12 episodes
2021Heaven's Design TeamTV showSeries Director · 12 episodes
2020Appare-Ranman!TV showStoryboard Artist · 1 episodes2019Rascal Does Not Dream of a Dreaming GirlMovieStoryboard Artist · Director2018Rascal Does Not Dream of Bunny Girl SenpaiTV showSeries Director · Storyboard Artist · 26 episodes
2017Sakura QuestTV showSeries Director · Storyboard Artist · 25 episodes2016My Hero AcademiaTV showOpening/Ending Animation · 12 episodes2015The Heroic Legend of ArslanTV showStoryboard Artist · 1 episodes2014Knights of SidoniaTV showStoryboard Artist · 1 episodes2014Chaika - The Coffin PrincessTV showSeries Director · 22 episodes2014NoragamiTV showStoryboard Artist · 1 episodes
2013Crayon Shin-chan: Very Tasty! B-class Gourmet Survival!!MovieStoryboard Artist2012Psycho-PassTV showStoryboard Artist · 2 episodes
2012Crayon Shin-chan: Fierceness That Invites Storm! Me and the Space PrincessMovieDirector
2011UN-GO episode:0 INGA-RONMovieStoryboard Artist
2011Crayon Shin-chan: Fierceness That Invites Storm! Operation Golden SpyMovieDirector2010Trigun: Badlands RumbleMovieStoryboard Artist2009Professor Layton and the Eternal DivaMovieStoryboard Artist
2009Animal Detectives KiruminzooTV showSeries Director · Storyboard Artist · 50 episodes
2009CanaanTV showStoryboard Artist · 1 episodes2009Evangelion: 2.0 You Can (Not) AdvanceMovieStoryboard Artist
2008Michiko & HatchinTV showStoryboard Artist · 1 episodes2008Soul EaterTV showStoryboard Artist · 4 episodes
2007Crayon Shin-chan: Fierceness That Invites Storm! The Singing Buttocks BombMovieStoryboard Artist
2007Den-noh CoilTV showStoryboard Artist · 1 episodes2007Moribito: Guardian of the SpiritTV showStoryboard Artist · 4 episodes
2006KemonozumeTV showStoryboard Artist · 1 episodes2006Ergo ProxyTV showStoryboard Artist · 4 episodes2005Fullmetal Alchemist the Movie: Conqueror of ShamballaMovieStoryboard Artist2005Pokémon: Lucario and the Mystery of MewMovieStoryboard Artist2004Beck: Mongolian Chop SquadTV showStoryboard Artist · 5 episodes2004Samurai ChamplooTV showStoryboard Artist · 2 episodes
2003RahXephon Interlude: Her and Herself/Thatness and TherenessMovieDirector
2003Scrapped PrincessTV showSeries Director · 24 episodes
2002RahXephonTV showDirector · Storyboard Artist · 3 episodes
2001PecolaTV showStoryboard · 5 episodes
2001Shingu: Secret of the Stellar WarsTV showStoryboard Artist · Director · 1 episodes
2000The Truth of Grimm Brothers' Fairy TalesMovieDirector
2000The Truth of Japanese Fairy TalesMovieDirector
1999True School GhostsMovieDirector
1995School GhostsTV showDirector · 1 episodes