Good MC lose brain against villain and suffer.

MC being patriotic to a country that doesn't raise him in this life and helping china like it is his mission, also china doesn't seem like they help, is very unrealistic. The fact that he has a good impression or even bothers with a family, specifically his ancestor who did the forcing and the grandfather who doesn't resist, that drive away his mother is a hilarious and downright bullshit.

MC is still fairly weak after 250 chapter, MC progress fast in early stages but slow down massively in latter stages, he beats people with lots of experience within couple months, but a year pass and he still stay below S class. There are also more character who are just dumb impulsive idiots who need MC to clean up their mess and I am tire of reading about all the bull crap that they make, those idiots in tense situation sure have a lots of drama or anger to not think about how to fix problem but create problem. I am okay with MC helping but please also shut the trouble maker up or don't bother with them at all, though relationship and story flow is fine except the speed of getting stronger.

Moron of character, after solving Danzo he couldn't go and show the world all the crap he did, but hide away, and get blame for senselessly by the higher up without a way to shut them up for good by using public pressure. Even if he is reveal to be the murderer it shouldn't matter that much because it is retaliatory and Danzo is a shit of a person which could be proven. [ - 4 ]

Helping Fang Yuan grow is the stupidest decision to do to not get kill by him, ignore and does not bother him unless needed to be is the right decision. Why bother helping ungrateful character if you don't want to get kill, just not bother him or not antagonist him is enough.