He is the god of darkness with the Underworld as his domain, where not even other gods may enter. He is following Kurose around for his own entertainment, finding it amusing how much darkness is in Kurose's life. Kurose names him "Tokoyami", meaning "endless darkness". He offers to bring Hino back to life if Kurose gives him several lives in exchange for her. However, this is a lie, as not even gods have the power to resurrect humans.