The first city he goes to he hunts over thirty magic beasts, some are weak, but it's explained that a wizard must absorb the energy or else it could become an undead spirit. It also introduces 4 'beast hunters', non-wizard people who hunt magical beasts, who say they can only barely beat the weaker ones as a group. So, even if the village was strong enough to beat the weaker ones, they would still need a wizard to absorb the magical energy. The MC beating them before the villagers know makes even less sense because he doesn't know that you have to absorb the energy, so at least one undead spirit should've appeared in his 18 years, which he also doesn't know existed.

He doesn't even meet a single wizard in the city as well. The knights who work for the city don't even kill the nearby magic beasts who threaten the common people. So, the village leader got extremely lucky not only encountering a wandering knight, but practically instantly upon arriving to the city. I guess villages getting wiped out by one magical beast is common in this world.

On the way to the city, he meets some bandits who he experiments his magic on, with no hesitation or remorse or anything for his first human kills, just because his mentor told him that sparing one is like killing ten innocents. At the same time, he gets mad at nobles for treating their knights like human shields. The reason the bandits attacked him, is because he was polite, even though the MC is not only perfectly fine with no supplies in a wasteland where the nearest village was 3 days away, but he's walking at three times the pace of a normal person with no sweat. The purpose of this encounter was just to 'teach' the MC not to show weakness, which they say outright.

The mentor pretty much teaches everything he needs to know mostly over 3 days, until he reaches one of, if not the only, library in the world with over a thousand books. Even when he encounters something outside his knowledge, like when the MC tried to get directions from a vendor who he deemed to be the 'most relaxed-looking', he just knows what to do. The fruit vendor rudely tells the MC to get lost when the MC asks them a question, even though the MC obviously seems like a country bumpkin, and the MC somehow just knows that it means to buy something if he wants to answer a question.

Then, at the library, he learns everything from common knowledge, to the basics of magic, to even scientific concepts like friction and microorganisms, over 15 days. He also just understands everything instantly. It's not like he has some epiphany later and then understands what the knowledge actually means. Instead, he just uses scientific concepts like friction in his magic right away.

He also fights a rabbit who blocks his projectiles with its teeth. Because of that he deems it to be immune to projectiles and decides to stab its throat from concealment. Hit it at a different angle? Use magic to trap it somehow? Nope, just creep up to it in concealment and stab its throat while it just stands there.

Another obvious one is that it has been said that non-humans are evil multiple times. So, later he comes across a guy getting attacked by some Dark Elves. Instead of assuming that they're evil, like he was told by literally everyone, he waits to see. Conveniently, instead of continuing the attack, the Dark Elves randomly decide to pull out a human hand to snack on. It then proceeds to a bullsh*t fight. The MC has this absolutely OP spell where he can do complete concealment. He can make sounds without anyone hearing him, and even light being shined on him only increases the magic consumption. He kills one with a projectile from concealment, so the other Dark Elf shines light in all directions. Instead of hiding behind a tree or something because they're in a f*cking forest, he decides to reveal himself in the open and almost dies.

Also, he pretty much only uses the same projectile attack so what the f*ck was the point of experimenting on the bandits and showing the reader what he can do if he never does it?

For example, one of the mysteries was about the parentage of the protagonist, with who is mother and who is father is. I'm not sure how to explain it but I think it is written pretty well

Another piece of good world building is how the magic works, as well as how it scales, obviously most of the power scaling is still yet to be seen at where I'm reading but it looks good so far. The magic works by "bloodlines" which are in essence classes or jobs. The MC is obviously pretty powerful with multiple bloodlines within him. I think this is written well enough since it doesn't feel like he is too overpowered and just rolls over people

The stakes went through the roof. It's not just that wizards are descendants of the so called gods, but the god's are body snatching the most promising kids of their respective houses. Because gods aren't immortal. In fact it's heavy hinted that they aren't the typical omnipotent beings gods. I suspect these guys are either mad scientists from a more advanced past/future or they are gamers from Earth that got a giant dose of megalomania. Maybe little of A and B.

The point is the story quickly stopped being about the MC learning about his parents and figuring out how he fit into the whole wizard/noble society and went all in on a multi-front battle against the great houses. That are probably all being controlled by the so called gods. At least they aren't making a frontal assault and doing it in secret, but its hard for me to set aside my disbelief in the effectiveness of their tactics.

The MC is supposedly always destroying all physical evidence (hair, skin, etc) so he isn't tracked by the impossible to avoid bloodline of his father. Yet the fact that there is no such traces in places where he's been witnessed is a red flag itself. Not to mention he was never described going full paranoia and scrubbing clean every hotel room, guest room, etc that he ever used. He didn't burn down he childhood home. Not to mention his blatant search for his mother by enlisting the help of minor nobles. Anyone doing an investigation of him would start to suspect things. He's looking for a woman that looks like him and is old enough to be his mother? Does he seriously think the noble that found a maid working for him that knew the story of his mother would stay silent if a more powerful noble questioned him?

It's seriously weird that the MC wasn't afraid of this or tried to silence the maid? Well at the end of the day even his search would have potentially brought about additional leads.

There's some potential that the story might actually develop such the MC does get cornered by some of these things, but I feel like it's more likely these 'gods' are going to be portrayed as arrogant to a s*upid level or have some major weakness. Like it's been hinted that one god might not be in control of the body she's possessing all the time. That perhaps their body snatching is just a way to stall for time? One house is looking for the secret to immortality of the soul, so maybe the gods just suspend the aging of their souls by possessing bodies but not actively taking control?

I'd also not be surprised if the MC really is literally the reincarnation of a god or is an even more elaborate scheme by a god to create a perfect container/body for themselves.