So I understand why some people are complaining about how Yurian acts, and how he hides his abilities annoying.
But give him a break! If I remember this correctly, he died as a teen with that same obsession of becoming an op background mc. And he never felt satisfied with it anyway cuz he couldn't really do much. And also, he will literally die if he does help his family or friends. And some others kept complaining about his actions when he was still in the orphanage, like seriously??? He didn't even know about the fact he could actually show his powers to them until he got into the academy. And that part where he could have given them the meat of the monsters he's killed. Wouldn't they question him? And even if they don't, by hearing an excuse, will he even be able to cook it? Or to clean the impurities that it might have? What if it wasn't even gonna taste good, or if he got caught bringing in some meat and how is he even gonna explain to the butcher about the monster's corpse? Cuz it's not like he can just do it himself, he didn't even use a weapon to kill those monsters. There are soo many reasons as to why Yurian did what he did, I feel like what he has is somewhat similar to a phase that stayed. Like some Emo people, and how some other adults also still watch this kind of stuff...(Not complaining though, do what you want to do)