It seems like there's a lot to explore with Kid and Killer and their friendship.
There have been hints of what happened in their past, like how it has been mentioned multiple times that Killer used to beat up anyone who made fun of his laugh. And we've also seen Kid beat up anyone who makes fun of Killer.
The origin of Killer's loyalty to Kid is also something that would be interesting to see, and it would make his fight with Hawkins more meaningful.
Law also got a flashback in Dressrosa, and Kid is just as important as him, if not more. So a Kid flashback would make sense, and Wano seems to be the perfect arc for it.We could even get the beginning of it as soon as next chapter.
There have been hints of what happened in their past, like how it has been mentioned multiple times that Killer used to beat up anyone who made fun of his laugh. And we've also seen Kid beat up anyone who makes fun of Killer.
The origin of Killer's loyalty to Kid is also something that would be interesting to see, and it would make his fight with Hawkins more meaningful.
Law also got a flashback in Dressrosa, and Kid is just as important as him, if not more. So a Kid flashback would make sense, and Wano seems to be the perfect arc for it.We could even get the beginning of it as soon as next chapter.