[The full force of that smile is something that should definitely count as one of Luffy's powers, because how is anyone supposed to do anything when faced with it? Gum Gum Believe in Yourself, maybe...

Face red, Koby sort of shrugs, pleased and shy and flattered all at once.] I wouldn't have done any of it without you, so. Thank you.

Helmeppo, yeah. I think he's just...lonely and bad at showing it? Really...really bad at it. He's gotten a lot friendlier, though.