Littlegirl78 I can clarify you on all of that if you want!!
Read it at your own content-
So Limuwan is the main girl, his whole journey was in his pursuit for her revival. HE achieved it by Sending his most powerful Clone named "Slaughter"(which became a separate being from Wang Lin himself) into the past to give the Heaven Revolting bead to his past self. His Slaughter Clone succeeds but as he also loved Limuwan he stayed in the past looking her over, watching his parents from a far.
While all this was happening, Slaughter also did stuff like giving a little girl the name "Butterfly" who eventually fought the true Wanglin and also travelling the whole world while showcasing his power.(The clone is powerful than the true Wang Lin as it achieved 4th step before true Wang Lin could.) Due to this , the Slaughter Clone showoff his power making other peak 3rdstage cultivators to sucide as they think that they are in a dream world that Wang Lin made.
This remain true for the real wanglin(At his present time line) as people think he is just a clone of the Slaughter and they all are in a dream. During the end of novel Wang Lin finds the method of revival and rips out Li Muwan out of the reincarnation cycle making her a 4th step without all the mumbo-jumbos he had to go through to become one. and the Slaughter Clone merges with Wang Lin again because he also loved Li Muwan early and couldn't live without her.
Now that that's over.
We get to the 2nd love interest or the whom I call the BITCH!! Liu Mei wanted to devour Wang Lin's domain to strengthen her own domain which was actually Ten Thousand Ruthlessness domain or something, and due to outside interference her domain turned into ten thousands lust domain and she and wang lin accidentally had sex.(Cliche ) But the story starts differing as it seems that Liu Mei got pregnant(It's harder for cultivators to get pregnant). And her hatred of Wang Lin start bubbling inside her, she was defeated by him in body and soul. SO as the disgusting woman she is, cultivated her unborn son into a resentment spirit, a high class dangerous spell that shows ruthlessness to herself jus tfor her revenge.
When Wang Lin finds about the fate of his son and watching his son gnawing at his own finger, Wanglin Claimed to fix him while he tries to kill Liu Mei which was saved by a family elder(Who eventually died suffering from Wang Lin's untamed wrath.) Feeling the dread for the first tiem in her life and her fake conviction she killed herself and drifted in the space while calling Wang Lin Heartless due to only loving Li Muwan a woman he never even spent much time with.
It is much later that we find out that the previous Limuwan was just a clone of the heredity cultivator belonging to the strongest cultivation sect in Alliance star system. Her technique was wasted as one of her thousand clone lost her virginity(Cough Wang Lin you dead.)
SO you can understand what kind of story follows here.
As for the other girl, she is good and a nice woman, but I don't know much about her as she never had much impact on people.(though they actually lived as a family in multiple dream worlds made by "Slaughter")
P.S. all this Bullshit was forced on Wang Lin by Heaven Revolting bead, this small bead has the power to alter and guide fate, Wang Lin(the God) acquired it from Su Ming(the Devil) the MC from Pursuit of truth when he traveled to past. This bead was made by Su Ming.