Once the participants from both sides had entered the arena, everyone else had to stay at the edge of the small island to watch the battle.
"Let me reiterate the rules. Once you enter the arena, you can only leave once a winner is decided. Surrender or annihilate your opponents to end the match. Even if the participants are injured or killed, those outside the arena must not interfere, or it will be considered a premature termination of the match. Violators will also bear our wrath."
With that, Katakuri looked at Luffy.
Chapter 153