It's ight, not sure what else to say. Really good in the beginning, quickly devolved. Especially in the Demon King arc. It was really intriguing and inspiring, the idea of him constantly dying over and over so that no one else dies. The unnoticed hero and all that jazz, and then somehow the main female character starts crying on his shoulder as if she can somehow sense what was happening and it's just like, eh. Not really necessary and it felt like an extremely forced way to introduce a connection between the two. And it just so happens that the Demon King was actually a uniquely beautiful girl, and that obviously means he won't kill her despite her horrific crimes that far outweigh the first person he killed. And badabing badaboom, now she's his slave. That leads into my next point.
Another thing I've noticed is that EVERY female is good or has a traumatic backstory. While every man so far, besides the protagonist, is a loser, a weeaboo, or weaker than their female counterpart. Just generally making the men, besides male mc, in the story look like losers and/or helpless while the females are badass and strong. And the one "man" main character that isn't patronized or made fun of looks like a little girl and is constantly feminized, so... Y'know, a pretty good indicator of what type of story this is. Oh, I guess there's also the old man swordsman, but not nearly enough focus on him besides, of course, when he was an enemy.
If I hadn't continued after the first arc, probably would have been a solid 7/10. Now though, I'd give it... a very shaky 3/10. It sucks too, I kept hearing how absolutely amazing this story was and when I actually took the time to read it, I was just left disappointed.