Behind the camera
- 2025Can a Boy-Girl Friendship Survive?Animation Director1 ep.
- 2025Honey Lemon SodaAnimation Director2 ep.
- 2021EDENS ZEROAnimation Director6 ep.
- 2021Kiyo in Kyoto: From the Maiko HouseAnimation Director12 ep.
- 2020MewkledreamyKey Animation1 ep.
- 2019The Demon Girl Next DoorAnimation Director, Key Animation5 ep.
- 2017Minami Kamakura High School Girls Cycling ClubCharacter Designer, Supervising Animation Director12 ep.
- 2011Twin Angel: Twinkle ParadiseCharacter Designer, Prop Designer, Supervising Animation Director12 ep.
- 2008Toradora!Animation Director, Key Animation4 ep.
- 2006Living for the Day After TomorrowAnimation Director, Key Animation2 ep.
- 2001PaRappa the RapperAnimation Director, Key Animation2 ep.
- 2000Descendants of DarknessKey Animation2 ep.
- 1998If I See You in my DreamsCharacter Designer16 ep.
- 1998If I See You in My DreamsAnimation Director, Character Designer3 ep.
- 1997Detatoko PrincessAnimation Director, Key Animation2 ep.
- 1997Revolutionary Girl UtenaKey Animation1 ep.
- 1993Super Dimension Century Orguss 02Key Animation1 ep.
- 1993Legendary Brave Swordsman YaibaKey Animation1 ep.
- 1992EllciaKey Animation2 ep.
- 1991Ariel DeluxeKey Animation1 ep.
- 1990Guardian of DarknessKey Animation1 ep.
Also known as: 大木 良一 · Ryouichi Ooki · Ryouichi Ohki