massive spoilers ahead, you were warned:

This is about the elite immortals and gods strongarming their narrative and shoving it down people's throats at all costs. They give our hero a list of evil immortals to destroy and a paoppei ( a superweapon) which turns out to be a clean-up mission to keep him occupied for he is a threat to the great plan.
They use a fox demon named Dakki to enact the detonator of the constant misery that leads to teh destruction of the Xin empire.
She seduces the emperor, kills his wife and all who oppose her, she kills a hero, cooks him and makes the hero's father eat hsi remains in a dish in his cel, said man has several immortal sons with great powers who join to destroy Dakki's rampage. When the 2 sons of the now mutated emperor leave to train and return they realzie their allies will not use them to fightbecause the Xin cant be revived using immortal power. which is arule. Immortals cant alter history with their power, but they can sure send killer fox demons to destroy a whole country, which they do. Then revive her. She gains sentience and is destroyed, the hero and his comrades stare down the great old sage immortal and his resolve makes the old sage concede to let humans lead their lives. One particular clown-like immortal flying on a large chibi animal seemed to have changed everything to make people this happen.

This is a popular series and I feel I couldnt enjoy it. I was bored and I slogged through the last few episodes. I know many love this but I am not a fan. I do hope people who like it, watch and give a second opinion on it. I understand the story, but I was not invested. Im sure the manga is great. I did not like the art style or the pacing. I felt there were too many characters being introduced for such a small ammount of episodes. either way. Not hating on it, but I didnt love it.

This series came out back in 1999, and didn't do a good job of following the manga. A remake came out in 2018 called Hakyu Hoshin Engi, which follows the manga more closely. So you can go ahead and skip... the remake. Seriously, the old Soul Hunter show is far superior, in my opinion. The story makes more sense, the pacing is much better, and the characterizations are better. The new series tries to cram too much story into a single season, and makes jarring time jumps. And it devolves into a very long battle with the bad guy rather than showing the developments in China.

I'm not going to say that this is a great show. It has its flaws. It can also be a little depressing, as China falls deeper and deeper into chaos. I do think they picked a better direction to go than the manga, and it's well worth watching.