That guy’s companions are as moronic as him, they should stop that kind of attitude from him and they just stay quiet, and even complain when he gets his just desserts.
Thanks for filling up the gap with a good translation.
Wow, the artist made him more hateable, more punchable than the novel. I even go back reading the novel again cuz I thought, "was he this annoying in the novel?".
I would assume he's massively jealous. At a guess, he's been an adventurer since he was old enough to be, has been working moderately or even entirely hard on ranking up and getting stronger, then this random dude swoops in and gets not only rank skipped, but brought along on multiple higher ranked jobs. If I'm right he'll shut the he'll up once some proper combat happens.