It's one of those where the author doesn't know how to continue the story so he just destroys everything and starts over. It would have been a better story if he just created a new story altogether. Everything that was given to him in previous chapters is completely wiped clean as if none of it happened. The only thing he has left to him is his desire for revenge or what not.
It follows the races through each era. Each era has its own protagonist that overturns common sense of the era to usher in the new one. It also provides the POV observations of the last human as she watches them grow. The story continues to watch the new race as it follows almost the same path of the humans except they never figure out the truth behind the origin of magic. Eventually the new race dies out to the last one just like the human race did before last human and the last of the new race meet for the first time. The story end with both of them observing the new new race creating fire.
TWO biggest gripes I have about this novel is first: JUST EAT THE DAMN FINAL PILL ALREADY!??!!? And second: all his harem are batsh*t crazy jumping into situations that he could control just to become a burden. It's not love, its just lunacy. I mean really where the f*** does he find all these crazy women who will either a: not run away so they are no longer a burden and he can kicka** or b: jump into a situation in which he could kick a** but now he has to carry them around because "I can't bear to leave you alone in this dangerous situation". I feel like the true people trying to kill the MC are his harem members. Their only purpose in this novel is to boss around the MC because he doesn't have any balls or nerf his OP fighting powers. I would loooove for them just to get offed. Everyone of harem members blackmails him into sleeping with them or else they'll go get themselves killed. There is no middle ground. Not to mention they can't even just shut up and help out the MC in dangerous situations. Always demanding for a change of clothes that got ruined IN THE MIDDLE OF F***ING NOWHERE.
The romance in this story is practically rape with him s*xually harassing her repeatably for 10+ chapters every time they meet. The guy sees her once and then every time he sees her he s*xually harasses her and she can do nothing about it because of his way superior cultivation. Every time he appears I just want to rip his head off. There are no wooing or bonding between them. I understand that it's a world where the strong reign supreme but the story is for a 21st century audience so it needs to be toned down.