MOI animation is a well regarded Korean animation studio that has animated on shows such as various 2000's DC animated shows (starting with The Zeta Project), Avatar: The Last Airbender, Boondocks, and some Marvel shows; as well as having been used by Japanese studios from time to time. Last winter, one of the OK KO shorts (which were all animated at different studios as a fun artstyle gimmick) was released and creator Ian JQ hyped that it was animated at MOI however, the short itself credits "MUA Film" instead, but the animation director (Byeongsan Park) is someone who's worked at MOI in the past then comes the Castlevania cartoon, which was mentioned in some pre-release interviews to have MOI animation on-board (alongside Powerhouse Animation). However, on the final show it says that MUA Film is involved, and most of the animators credited are people who have worked at MOI in the past. Finally, according to IMDB, the latest thing to credit MOI is season 4 of Ultimate Spiderman (who mostly aired in 2016). Between these facts, it appears that MOI has rebranded.