This is a copy-pasted review from the LN, but i think it basically sums everything up
This story doesn't live up to the promise of the early chapters. The gods reincarnated him to being up the civilization level of the world? Nope, that ends with the introduction of a single game. Avoid getting entangled with the king and become an adventurer? Haha, nope, not only can the MC not say no, but apparently the king's job is summoning the MC every other day to complain about how OP he is or for some random inconsequential thing.
The MC will do his best to not stand out, yet he will famously become an actual noble at a very young age, so all that accomplishes is repeatedly having "that brat is a noble/strongest adventurer?" over and over and over again. Sometimes the same scene will be written from multiple PoVs because apparently that horse hadn't been beaten to death yet.
It's a disappointingly mediocre story where things happen so people can over react to the MC. This includes all the girls that get engaged to the MC. They're there purely for reaction value and get no character development or a chance to show any charm points. If it's not that, it's everyone in the story complaining to the MC about all sorts of worthless things. Very little comedy, fun, adventure or development to be found.