It's always there throughout the story, but it does feel less blatant after a while. I just had to shake my head when the story declared that the MC knew that one of the plots of the demons pre-apocalypse was to teach humans to mistreat each other because of race...and then the MC casually accepts as appropriate the fact that his race is superior and treated better than others throughout the story. He personally treats everyone quite well, regardless of their race (wives, fellow warriors, etc), but he also accepts as natural the fact that foreigners are uncultured barbarians. It's more an amusing quirk of the story than anything offensive. It's true, though, that literally everything in the story that is considered "the best" in the world (that wasn't created through his own special powers, at least), both historically and present, is Chinese. Every. Thing.