Even if Kaido went further and sealed up the keyhole, Little K could gradually chew through the Seastone casing of the cuffs through cellular metabolism, expose the bomb's fuse, and destroy it. It could still help Yamato escape.
However, Yamato could not merge it into her body like Mousse, its original owner. What if Kaido discovered it and took it away?
But there was no need to worry about that either. Although Little K did not have another Mini Form like Amon, based on the innate properties of cells, it could still expand and shrink to a certain extent. At its smallest, it could become about the size of a ping-pong ball!
On top of that, Little K could transform freely, making it extremely easy to hide. Homies could not directly sense it with Observation Haki either. Forget Kaido, that drunkard—even King, the most reliable man in the Beasts Pirates, would never be able to find it.
After noticing the Beasts Pirates army leaving Onigashima, Mousse gave Yamato's pair of smooth horns one last stroke, then leaped into the pages Amon had long since spread open. "Goodbye, human girl!"
After approaching the Beasts Pirates' formation, Mousse played a little trick to avoid drawing attention too early:
He hid inside the Book World. Although that restricted him and prevented him from completely closing the exit, it was enough to block the perception of outside Observation Haki. As long as Amon flew high enough and turned its cicada-wing-thin side downward, people on the ground would find it difficult to make it out with the naked eye.
Once the battle began and the scene descended into chaos, Mousse could slip out of the Book World, and no one would notice him.
Even if someone did notice, in that kind of situation, it would