[ch. 140] He may be the a single who results in the portal for the Demon Plane. Itsuki has the Inverse Guy transport Kuwabara, Kurama, and Hiei to hyperspace so that you can enjoy Yusuke's battle with Sensui with no interference or escape. Just after Sensui's death, Itsuki informs Koenma that he cannot have Sensui's soul as he did not desire to Vi