"Straw Hat, she's not someone you can defeat just like that. Rather than getting tangled up with her here, we should focus on getting out as quickly as possible."
After Law was driven back by one of Ayn's slashes, he advised against continuing to fight her here, since Whole Cake Island had already descended into chaos.
No matter who won in the end, whether it was the Big Mom Pirates or the World Government and the Marines taking down BIG MOM, the outcome would be bad for them.
It wasn't that they couldn't defeat Ayn, but it would take quite a while. If the Big Mom Pirates and the Marines settled their fight, they might not be able to escape.
"If you want to run, go ahead. Anyone struck by my Return-Return Fruit ability will stay that way unless you defeat me or I release the ability myself.
"I'm a Rear Admiral at Marine Headquarters. Unless I'm on a mission, I normally stay at Headquarters.
"If you miss your chance to take me down now, then unless you storm Marine Headquarters, your crewmates will probably have to stay children forever."
Hearing Ayn's words, Law knew things were about to go badly. As it turned out, his guess was right.
Luffy, who had already decided to retreat for the time being, changed his mind as soon as he heard what Ayn had said. He turned around and charged straight at her.
Whether Nami and Usopp minded staying children forever was beside the point. As their captain, and with Nami and the others being important crewmates, Luffy couldn't allow them to remain that way.
With the Straw Hat Pirates and the six Underworld Kings taking some of the pressure off BIG MOM, the Big Mom Pirates, who had been at a disadvantage,