
When delinquent Yusuke dies saving someone else, he gets a second shot at life as a spirit detective; with his former rival, Kuwabara, and demons Kurama and Hiei, Yusuke takes on the monsters and humans who desire to rule the three realms of reality.

Kurama puts his soul on the line and issues a challenge to Kaitou: one by one, the letters of the alphabet will become taboo.

The gang reaches the captive Yusuke, but Kido has a final game to play with the Spirit Detective; one of his friends is an imposter and Yusuke has only minutes to determine which one it is; with his decision made, Yusuke attacks!

Between the Living World and the Demon World, a tunnel is being carved that could usher in darkness and chaos; in a bold move, Sensui begins his search for the person that will finally allow him to complete the tunnel.

A mind reader, Murota, is the Spirit Detective's hope to find the truth behind the tunnel.