Yusuke Urameshi is informed that Koenma is hiding from the Spirit World for disobeying the direct order of having Yusuke erased from existence. Desperate to find a solution to his situation, Yusuke later visits Genkai, who advises him to go to the home of a former spirit detective named Kuroko, getting to know her children and husband as well as their talents. He is approached by three men, who offer an invitation for Yusuke to travel back to the Demon World.