Before Yusuke and Toguro. Before Matthews and the Dark Tournament. Before Hiei, Kurama, or Kuwabara. Sensui, the Spirit Detective, worked with Amakaze, Zandock, Caspar, their sister Calista, and the full demon Itsuki to bring peace to the mortal realm.

A slightly annoyed Saint Beast returns, but the gang soon has bigger problems. Someone else has entered the game, and he wants the world...Now Finished