|Voice actor:||Kazuhiko Inoue|
Reiji Arisu (有栖零児 Arisu Reiji?) and his partner Xiaomu are the protagonists of the game Namco × Capcom, and they also appear as a playable characters in the games Project X Zone, Super Robot Taisen OG Saga: Endless Frontier and its sequel Super Robot Taisen OG Saga: Endless Frontier EXCEED.
When young, Reiji was training to be a member of the secret organization Shinra like his father Shougo Arisu (有栖正護 Arisu Shougo?). Ten years ago, in Shibuya, Reiji tried to protect his father from Saya, and he got hit in the head and passed out. When he awoke, the battle was over and his father perished, believing that Saya killed him. The scar in his head pulsates when Saya is close.
Namco × CapcomEdit
Reiji is now a member of Shinra, which investigates disturbances in space and time called "fluxes". He is a no-nonsense, hot-blooded fighter who wields an array of pistols, shotguns, and swords.
Super Robot Taisen OG Saga: Endless FrontierEdit
After saving his world in a series of brutal battles, Reiji and his partner Xiaomu continued to pursue the crime lord Saya when all three were sucked into an unknown flux which deposited them among the worlds in the Endless Frontier.