Zeo drew a circle on the ground around himself, declaring it as his "space", and stated that Brook's bones were going to be crushed to bits if he entered it. Undeterred, Brook started humming a song and passed the circle and Zeo in an instant. As Zeo wondered how Brook got past him, he was then cut down by Brook's "Kasuriuta: Fubuki Giri". As the cold of the attack froze Zeo's blood solid, the fishman fell to the ground,  defeated.  After the battle for Fishman Island ended, the officers of the New Fishman Pirates were locked up in the palace prison. 
On board Noah, Luffy defeated Hody once and for all, but the ship continued to fall. Hody, with his last conscious thought, told the ship to keep falling until it destroys the entire island and all the fishmen who lost their pride for siding with humanity. With the Ammo Knights declaring Hody's defeat and Noah's descent, members of the New Fishman Pirates attempted to flee for their safety. The officers responded by brutally attacking them, declaring that their deaths would leave a grudge against humanity and that the future generation would one day avenge them. Furthermore, the officers forbade any one of them from leaving and ordered them to stay behind to fight until death falls on them. The lower echelons of the crew declared that the officers went insane, having the same suicidal grudge as Hody himself.