
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.

Yusuke has defeated the Doctor, one of the seven psychics trying to forge a tunnel between worlds.

Kuwabara struggles to keep up with Sea Man's power.

Yusuke learns the dark secret behind Sensui's fall; after hearing the truth, Urameshi begins his quest to defeat the fallen Spirit Detective once and for all.

Yusuke and Sensui continue their battle, but despite all his efforts, Yusuke is not able to prevent the dark detective's kidnapping of Kuwabara.