Zack (ザック, Zakku) is a Celestial/Heavenly Being and Hideyoshi's new Celestial King Candidate. He takes the position of Nero the Celestial King Candidate of Hideyoshi, after Hideyoshi's first Celestial King Candidate was sent to The Underworld. Zack is a very greedy & malicious person and he also works for the yakuza to get his way. Beside that, he always with Team Capucho and try threatening Hideyoshi by kidnapping the kids who being taking care by Hideyoshi to force him to join their team.