Avan was raised by his grandfather, who was such a wise and studied scholar that he could predict disaster, an ability that made him respected, but also feared and envied and isolated
and so when Avan joins a group of his peers in the form of the knights of Carl, he goes all in on hiding how clever and skilled he is, becoming as disarming and non-threatening as he possibly can
and I wouldn't call it fake, because Avan is a happy-go-lucky kind of guy at heart, he wants to have fun and cook and make friends, but it is also so guarded and calculated
The wise hero from the previous generation isn’t usually stupid but their strength doesn’t usually come from constantly analyzing their environment and thinking
and it's a fascinating contrast with Roka (Maam's dad), who is 100% himself at all times and deeply sincere as a person, and it's Roka who keeps attracting allies to them