Luffy leans on his training to bring out the power of his Haki! Meanwhile the children of Big Mom gather as a massive force ready to smash Luffy and the Straw Hats. Their resentment at being embarrassed fuels their desire to get revenge!

Luffy`s dramatic battle finally draws to a close! But even if he is able to pull out victory in the last moment, can he remember the key to escaping the Mirrorworld?! Meanwhile, the whole host of the Big Mom Pirates watch the lonely mirror to see who will come through!