why chaud is so bitter

This is a short comic of my beyondard rockman exe in cartoon style, i was practicing the desing of the pages i would use for my someday comic book of rockman exe.
This one is about Megaman trying to get Lan and Chaud to get along, but chaud is the antisocial type, so they ask protoman why is chaud always so bitter, in my version protoman is more active and funny,maybe hes the reason.