History's Strongest Collaboration vs. Glutton of the Sea! Celebrating Mr. Satan's victory at the IGO tournament, the group discovers that the tournament was planned with the ulterior motive of gathering the world's strongest fighters to capture the legendary Deep Sea Glutton creature Akami, which has the ability to suck the energy out of living things. The Akami appears and attacks Mr. Satan, Usopp and Gohan, poisoning them and absorbing their energy, before disappearing again; This leaves the group with only 30 minutes to find Akami and create an antidote to its poison. After defeating Sanji, Piccolo, Franky, Gotenks and others, Akami evolves into an even more powerful monster, even gaining the ability to absorb and use the power of energy attacks intended to stop it. Luffy and Toriko distract the monster while Goku charges a Spirit Bomb using the energy from everyone at the tournament. This attack, along with a simultaneous finishing move from all three combatants, defeats Akami, and the group resumes their banquet. Neither Zoro, Zebra or Vegeta participate, as they have been fighting each other since the tournament began.