Kakuja

Kakujas (赫者, shining one ) are a transformed kind of ghoul that rarely appear among repeatedly cannibalizing ghouls.

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.