Unkai Saitou

Unkai Saitou is the main antagonist of the Psychic Detective Yakjumo series.

Appearance
He is a tall man with long straight white hair and crimson red eyes. Unkai was usually seen wearing a costum.

Personality
Unkai is cruel, devilish and insensitive to other's opinions and feelings. He is the kind of person who will use all the possible means to get what he wants, doesn't matter what that mean includes. He uses Miyuki Nanase as a tool in order to fulfill his wish and doesn't really care about her or another person. Unkai is a twisted person full of hatred.

Background
His one target is to take over Yakumo's body once the boy has completely drowned in hatred. He planned to kill both Yakumo's uncle and his guardian Gouto. However, Yakumo was stronger than he appeared and both souls couldn't align together.

Abilities
He has the ability to see ghosts just like Yakumo Saitou. Unkai is Yakumo's biological father and a spirit of the  dead. Unkai sees everyone's true nature as darkness.