Nasuverse lore gets changed around. Overall, the world was meh. Think author Missed an idea why they didn't identify kurumi as a dead apostle ancestor.

Language context for Japanese and American culture. The author did relatively ok here, but some Thoughts and talks still sound like a Chinese xianxia. Also, native naming conventions were off in some places. Google translate probably didn't help.

Author has some wrong ideas on some American laws, but that can't be helped and it's minor plot wise.

While I don't mind the existence of an helping AI, I didn't like how red queen turned out. Basically straight out villainy and harassment and kurumi basically not giving a shit.

Skipped battle of the heavens world halfway to the end since it dragged on. Google translate basically became nearly unreadable.

The author also likes to add on negative traits to male protagonists so they can justify harassing the protagonists. That being said, the novel does highlight existing flaws as well.

Basically all males were made to be either scumbags, playboys, rapists, or have weird fetishes.