The latest episode of One Piece, which is titled "Dead or Alive! Queen's Sumo Inferno!" featured the start of the Sumo Inferno Tournament at the Excavation Labor Camp in Udon, wherein Straw Hat Pirates captain Monkey D. Luffy and Old Man Hyo were given the opportunity to fight for their lives. In the first round of the tournament, Luffy already decided to showcase one of his most powerful abilities to Beast Pirates All-Star Queen the Plague by beating multiple opponents using Conqueror's Haki.
Before the Sumo Inferno Tournament began, everyone at the Excavation Labor Camp in Udon expected Luffy and Old Man Hyo to die. Queen might have allowed them to fight for their lives instead of killing them in an instant, but the prisoners seemed to know that the Beast Pirates All-Star didn't really have the intention of letting Luffy and Old Man Hyo leave the Prisoner's Mine alive. While they would be needing to fight using their bare hands, their opponents were free to use any type of weapons.
However, Luffy didn't seem to have any problem with the rules of the Sumo Inferno Tournament. Instead of being worried about their current situation, he looked thrilled and was very optimistic he could beat every enemy that would enter the ring. When a group of Beast Pirates charged at him and Old Man Hyo, Luffy quickly defeated them even without touching them.
One Piece Episode 932 featured the reactions of the people at the Excavation Labor Camp in Udon to Luffy's Conqueror's Haki. All of them, excluding Queen, were shocked by the power that Luffy possessed. He told Old Man Hyo that after his Seastone handcuffs were removed, he felt lighter and stronger. Now that his power was back and he could finally use his devil fruit ability, it remains to be seen if anyone at the Prisoner's Mine, aside from Queen, could match Luffy in terms of battle power.
Luffy was aware their lives were at stake at the Sumo Inferno Tournament, but he had a better reason for joining the competition. He was planning to use all his opponents as his training partners to help him further improve his Haki, which he badly needed to beat Beast Pirates captain and Emperor Kaido in their second face-off.
One Piece Episode 932 also revealed the real identity of Luffy's friend, Old Man Hyo. While he was initially introduced as an old and weak prisoner, he turned out to be a prominent personality in the Land of Wano. As Shinobu revealed, Old Man Hyo, who is popularly known as Hyogoro of the Flower, was the most influential man behind the scenes in the Land of Wano 20 years ago and the great boss who had complete control over the Flower Capital underworld. He was trusted by the bosses of the other five regions and was a chivalrous yakuza, who had both power and magnetism.