Arc System Works Co., Ltd. is a video game developer and publisher located in Yokohama, Japan. They are well known for their fighting game franchises, like BlazBlue and Guilty Gear.
They helped publish the console release of Arcana Heart 3, as well as later revisions.
Arc System Works has also worked on other games and franchises, like Persona 4 Arena, Under Night In-Birth, Chaos Code, River City Girls and Granblue Fantasy Versus. They are currently working on RWBY: Arrowfell and DLC for Guilty Gear -Strive-.