The boy's face looks like a frog...
PS: Since his target is the little girl, shouldnt he have attacked the little girl from the start instead of presenting himself?
"So, new guy, what have you hunt today?"
"Just a Mythical Dragon who was threatening to destroy the world..."
"I see... did you bring any proof?"
"It's corpse, but I need an open field bigger than this town to unload it"
"...now, thats a problem..."
XD
@m4ng4 if you want some spoilers, take a look at the raws, there is the next chapter and the 7th chapter available for free reading. Maybe you wont understand what they are saying, but it will surely give up some ideas of whats happening next ;)