Yamato tells Momonosuke and Shinobu that he once met Ace, who came to Onigashima looking to get Kaido's head. Yamato and Ace engaged in a fierce battle that eventually turned into an important friendship.

Yamato tells Momonosuke about how Ace gave him hope for the future. Meanwhile, Luffy and the other allied pirates from the Worst Generation make it to the rooftop to finally face off against Kaido and Big Mom.