Yakusugi- A mysterious priest, rumoured to be over a hundred and twenty years old, who appears to offer aid to the protagonists at unexpected times. Through his extreme physical and psychological training, he has managed to become the pinnacle of human ability. As such, he was selected as the test subject of the Dive Inspection. However, he vanished when the experiment went wrong. Kankel was born from him as a result, and though he is connected to the creature, even Yakusugi can not keep it contained. When Lamia destroys Kankel, Yakusugi dies along with it.