Reiji Arisu is one of the main protagonists in Namco x Capcom, along with Xiaomu. When he was younger, Reiji tried to follow in the footsteps of his father, Shougo Arisu, and be a member of Shinra, a secret organization that investigates disturbances in space and time called fluxes. However, in a battle with Saya, he was knocked unconscious and woke up to find his father killed, and is now after pursuit of Saya.
He has appeared as a playable character in Super Robot Taisen OG Saga: Endless Frontier, as well as its sequel, Mugen no Frontier: Super Robot Taisen OG Saga EXCEED. Reiji also appears in the crossover game, Project X Zone, where he is paired with Xiaomu.
