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.

Appearance
Koushi is a big mature male of seeming far eastern origin, most likely Chinese or Japanese.

Personality
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, which shows that he has little control over the sudden, violent impulses his Akuma powers have over him.

Third Exorcists Arc
Koushi is first introduced as he walks around the Black Order's headquarters with Kiredori and Tokusa. As Marie pushes Allen accidentally onto him, Allen's Innocence makes contact with Koushi's Dark Matter to which he interacts violently by hurling Allen onto stone pillar. This sudden reaction meets disapproval from Kiredori, Tokusa and Howard Link.

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 pleads for help. Later he is impaled and killed through the chest possibly by Lenalee as she kneeled crying hearing that Allen will become the 14th Noah very soon.