Pu (ぷう, Pū, English manga: Pu, English anime: Puu) or Pusuke (ぷう助, Pūsuke) is Yusuke's spirit beast. To return to life Koenma gave Yusuke a golden Spirit Beast egg. As Yusuke traveled with Botan as a ghost it would feed off of his aura and hatch in a creature whose form and demeanor would depend on how pure Yusuke's actions were. After using all the energy he had accumulated to save Keiko from a fire, Yusuke was returned to his body through an alternate method, while the egg was stored in the underworld by Koenma. During the Dark Tournament the egg hatched into Pu, a small blue animal with large floppy ears, a beak and hair resembling Yusuke's. Yusuke is embarrassed to get such a cute spirit beast but is endeared to Pu after it helps him during Genkai's final discipleship test. After Yusuke is killed by Sensui and revives as a demon, Pu changes into a large blue bird, resembling a phoenix. In the anime television series, Pu is voiced by Yuri Shiratori in Japanese and Justin Cook in English.