Defend Luffy! Zoro and Law's Sword Technique!

Big Mom falls into the ocean below and starts to drown, but her homies are unable to go rescue her. With Luffy left unconscious from Kaido's attack, Kaido aids the homies by attacking Zoro. Law uses his powers to swap places with Zoro and strike at Kaido, but knocked back. This allows Prometheus and Napoleon to escape, while Zeus is still trapped in the box. Prometheus and Napoleon dive into the sea, rescue Big Mom and carry her back to Onigashima. Kid and Killer break off from the group to deal with Big Mom. On the way back to the floating island, Big Mom thanks Prometheus and Napoleon for rescuing her, but gets angry at Zeus for not coming to her aid. Prometheus, no longer wanting to share his power with Zeus, suggests that Big Mom abandons him and creates a new homie to be his girlfriend, which she agrees to. While they rise to the island, the Heart Pirates watch her from the Polar Tang, angry that she survived. Kaido prepares to finish off an unconscious Luffy, but Zoro prepares to use the last of his strength to take him down. Zoro, using Nine Sword Style, slashes Kaido's chest leaving a grievous wound. Seeing his wound, Kaido questions Zoro if he has Conqueror's Haki. Zoro doesn't know what he is talking about as he falls down, saying that he had hoped that attack would have brought Kaido down to the ground. Kaido, however, tells Zoro that his attack will definitely leave a scar. Kaido then retaliates and when Law tries to aid Zoro, he, too, is struck down. Kaido considers it a pity that they didn't decide to work for him, but Luffy, having regain consciousness, stands firm on their choice to ally with the samurai, and once again swears to defeat Kaido.