Goushi

Koushi is one of the Third Exorcists, humans who have been genetically altered to be half human, half Akuma through the Third Exorcist Program. Koushi is a mature male of seeming far eastern origin, most likely Chinese or Japanese. He is shown to be quick to rouse to anger, as he hurled Allen Walker into a pillar on meeting him. However, this was most likely due to the fact he came into direct contact with Allen's innocence and it set off the Akuma part of his being, which shows that he has little control over the sudden, violent impulses his Akuma powers have over him.

He is later seen in Greece alongside Klaud Nine, Lenalee, and Timothy while encountering what appears to be Lulu Bell, he is last seeing being consumed by the Dark Matter, while he asks Lenalee for help.