Science Saru Inc. (Japanese: 株式会社サイエンスSARU, Hepburn: Kabushiki-gaisha Saiensu SARU), stylized as Science SARU, is a Japanese animation studio headquartered in Kichijōji, Tokyo. Established on February 4, 2013 by producer Eunyoung Choi and director Masaaki Yuasa,[1] the studio has produced four feature films and five animated series, as well as co-productions, a compilation film, and episodes of series for other studios. Science Saru's first release was the Food Chain episode of the American animated series Adventure Time (2014);[3] its most recent projects are the animated feature film Inu-Oh (2021),[4] the animated series The Heike Story (2021),[5] and two short films for the animated anthology project Star Wars: Visions (2021).[6] The studio's work has received critical acclaim both within Japan and internationally, winning awards from Annecy,[7][8] the Japan Academy Film Prize,[9] the Mainichi Film Awards,[10] and the Japan Media Arts Festival.[11][12] Science Saru utilizes a hybrid animation production method which combines hand-drawn and digital animation (including Flash animation), a technique not previously used in Japanese animation.[13] The studio is currently led by Eunyoung Choi (President and CEO).[2]