Kai could do a lot with Will Manipulation ability. He can do anything he wants using this ability, but that is only applicable to the law.
He also needs to unlock the elements himself before he can manipulate them, he is also not using them to their full potential.
Kai started walking after finishing his battle. After nearly a week, Kai finally arrived at the destination, and the fragment also reacted.
But he appeared near the same thunder ape.
'What the fu** is happening? Is that ape having the fragment?' Kai cursed his luck.
He came to the only logical conclusion to this situation, which is that the thunder ape has a fragment.
'How can I obtain the fragment?' Kai doesn't want to go empty-handed, so he thought of a solution.
'Should I try assassinating it? No, it is too risky, and there are a lot of uncertain factors involved in the plan.'