Kakuja

Kakujas (赫者, shining one ) are a transformed kind of ghoul that rarely appear by repeatedly cannibalizing ghouls. When a ward gains a increased amount of ghouls, more instances of cannibalization occur because of turf wars or when "food" becomes scarce.

Sometimes, this transformation is incomplete, and such individuals are called Half-Kakujas.

Biology
It is said that through cannibalism, a ghoul absorbs Rc cells, and this uptake of Rc cells increases their concentration within a ghoul's body. If the concentration becomes high enough, it may trigger a mutation within the cells and lead to the formation of a new kagune.

Powers
Apart from the predatory kagune ghouls commonly possess, a kakuja has a special kagune that clads the ghoul's body and functions like an armor. The kagune amplifies the kakuja's strength or diversifies his abilities, which makes a fight against one of them especially hard.

Individuals

 * One-Eyed Owl
 * Yakumo Oomori
 * Yoshimura
 * Ken Kaneki
 * Arata Kirishima