After reading 130+ chapters (thanks for the raws) here's what I can say.In my opinion, people are exaggerating about the patriotism in the novel. MC cares about his family+girl above everything, but also wants to help his country whenever possible. Why? He literally lived through the destruction and massacre of his country's population. It would be rare if that didn't affect him. In fact, I could even say he is selfish. He doesn't help others out of patriotism, he does it because he wants to form his own team to fight demons. He's trying to save the world on his own terms. With that out of the way, it is very readable. MC is definitely OP since he has obtained multiple rewards that although separately are good, combined in the same person make him progress very quickly. However, this is somewhat balanced with the fact that demons are way stronger than humans. As a result, he keeps having to fight enemies quite above his level. Anyways, I suggest you don't let comments about racism/nationalism dissuade you, it's not as bad as some are making out to be.