I think you don't need to worry about harem. I'm currently at chapter 655 and MC doesn't seem to be interested in either sex or romance. Also, you should look for translation of Reverend Insanity on Qidian. Today there are 787 chapters and it's updated on a daily basis, but chapters 99+ are locked. Well, you can find these chapters on pirate sites, too. Apparently Novel Updates didn't add new links.
SPOILER.................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... The novel is ongoing but I'm positive that there won't be a redemption arc or romance involving the MC. As far as I know he fell in love with someone in his last life, but it ended tragically as they couldn't be together. At present he's basically devoid of any affection or sexual desire and focused solely on his goal. Fang Yuan is a true villain and he wouldn't want a 'redemption' even if he could get it. He doesn't give a shit about righteousness, morals or other people's opinions. Not to mention the fact that almost all characters in the novel are evil or hypocrites hiding behind a mask of morality while scheming on the side. Moreover the author stated that he wanted to create a true villainous MC. So yeah, Fang Yuan is a villain, not an antihero and he's not going to change because of love, family etc. He's already 500 years old, so it wouldn't be realistic if he had changed because of a 'fateful encounter' with a busty beauty...
SPOILER................................................................................................................................................................................................................................................................ Not really, so far he had one forced ally that betrayed him later on and another one he scammed to make him join forces, as far as I know he will have some allies later, but I think they would either be evil or deceived by FY. As for friendship etc. for him people are just useful chess pieces, I doubt he could ever make friends with this kind of fixed mindset. He doesn't 'like' people in general. I would say there are two types of people for him - the ones he can use and the ones he wants to get rid of. If someone doesn't fit in these categories he's simply ignored.
SPOILER............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................Yeah, but it didn't go as BNB planned.
Spoiler.................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................It was right after he finished refining but BNB was preparing for some time to backstab him (literally) and he plotted against FY with other person.
Spoiler.............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................Honestly it's more complicated because BNB succeeded in taking FY by surprise but FY managed to find a way out.
SPOILER.................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................I've read 655 chapters and he didn't die so far. I remember from other reader's spoilers that FY was believed to be dead in the future chapters but it must have been just a near-death experience, another scheme or he came back to life because he's alive and kicking in the volume 6 (after more than 2000 chapters).
This manhua is based on my favorite CN novel and I definitely wouldn't classify it as shoujo. It's actually a quite deep story with psychological and philosophical aspects involved, but first of all it's not for the faint-hearted. Fang Yuan is basically a sociopath, an extremely ruthless and cold-blooded individual with no empathy or humane feelings like love, compassion etc. I would recommend it if you have nothing against villainous MCs.
Anyway, I'm really surprised to see this chapter. I remember reading one chapter of manhua based on Reverend Insanity, but it was probably a different version. This one looks much better and I hope it's going to be continued. If you know where to find raws, please let me know.