oh yeah the fenrir tribe is protecting a legendary sword in a labrynth valley which makes the user go insane and you need someone from the wolf tribe to guide you there, lets just ignore that surely nothing will happen to that. Did I forget to mention that to keep the user from being insane they need to absorb fenrir blood? MCs decision and future planning sucks ass. The princess of the fenrir tribe literally proposed to you and you had the power to help her tribe but he did nothing about it.

oh neat lets create a f*cking town without the permission of the king by just buying land. Surely even if I buy land in anothers country im not liable to accept their rule since I made a frontier village on it. Like dude. You may have bought the land but you are still susceptible to the country's rule. like everyone in that country (or more like everyone in this story) is a dumbass. Someone can literally just build a town without anyone questioning as long as they offer to frontier it, that I can understand. But not checking up on it is pretty s*upid. Also what the MC did is basically seceding from the country the land was originally from and then acting like oh im just making a village farmland nothing special, while also accepting "legendary species" and expect others to not get worried. Its like literally you are a king of a nation and you see your neighbors amass nukes and expect you to not be worried about it. The kings response is the most sane I have seen which makes me think he might just be the most normal f*cking character. Not smart, but not dumb either. Every other character just decides to antagonize someone with a f*cking nuke while the king just tries to have a wait and see option. Neither for war or peace. Just a soft balance of non-aggression.

Fenrir tribe gets attacked. You would think they would bring more people as reinforcements but no. They just bought like what, 5 people? What annoys me more is yea the hero stole the sword. Lets ignore him and eait for him to self destruct like what? Yea lets just leave them wandering the labrynth and starve to death, sure thats a sound strategy but its pretty f*cking useless if you dont leave someone to monitor it from the shadows. Surprise surprise, they get out of the labrynth. But in the most s*upiddest way possible. Sui attacks someone from the royal capital (which is f*cking far by the way) in self defense and blasts him away witha tornado which coincidentally goes to the labrynth and attacks the hero lifting them out of the maze and freeing them WITH the sword. Like what is this story telling. Im losing braincells.

First the MC's attitude: the MC is a teen, but don't think of him as a weak Japanese teen rather think of him as an American teen from like the 90s. He is c*cky, a brat and thinks he knows best, but generally followed authority, at least until authority tossed him aside, thus freeing him. He is OP, and knows it, and as a c*cky teen, it reinforces his attitude, but I don't think he actually knows how far out of the norm he is.

Second, regarding the firing. He was hired to do a job to essentially do stuff with materials and earn the party extra income, and if not doing that, then assisting in the killing. Was he doing the job? Maybe at one time, but by the time of the firing, no, he got too tied up in a side business of helping the country without pay, and for the killing side, pretty sure he had too many resources tied to the side business that probably all he could do was equipment, but a top equipment store, which a hero party should have access to, could probably replace him on that, if they paid attention. Was his firing justified? Yes. Could/should they have done it in a more civil way? Yes. Was his side business important? Yes, but it really wasn't a normal adventurer's job to do. Maybe an adventurer could start doing it, but they really should change jobs after starting to court mage or something along those lines.

Third, his reaction to his firing. Should he have done what he did? Probably yes, if you are not getting compensation to do something like protecting the country, then why should you dedicate all your resources to it. Should he have done it the way he did it? Probably no, instead of all at once, considering the potential impact of doing this, he should have tried to notify the guild or government leadership of the issue, then release or scale back the barriers over like a month or more, giving them time to deal with all the threats or give him a rightful compensation to continue his side business as his primary business.