https://www.po18.tw/books/804237

I don't usually read reverse harem; but this one is surprisingly well done compared to others I've skimmed. MC believe she reincarnated as a villainess in a novel, but there's a twist onto it.

there is not even a ML who is unimportant I'd say. they each have their own role, tho the most important I think it's the younger stepbro (2nd ML). not being biased because he is the otouto, but as usual, it turns out to be a not transmigration setting. the original book was just a prank made by a god, MC try to fix everything (not letting her parents die, not letting 3rd ML die but every timeline always ended up in tragedy).

In the end she gained ability to forget previous timelines because redoing too much timeline make her mad and she even comitted su*cide at one point. the reason why this timeline is different is because of 2nd ML (Qu Ze). he didn't exist in the previous timelines. there are twin gods, MC basically the female twin's avatar, and seeing the MC become more and more stressed every reincarnation, the female twin god become more and more sad, in the end the male twin god make his avatar too + his puppy's consciousness (because this puppy grew attachment to MC, he saw every reincarnation MC went through). that was how 2nd ML end up as MC's stepbrother in a sense. he later regained his memories watching MC going through all the timelines, and he could restore MC's memory too (he have the key), but he didn't do so iirc.

Anyway, okay, here are the MLs:

1st ML: Wen Xuming, supposedly the og!ML, 4 y.o older childhood sweetheart older cousin, MC view him as an older brother. I think if MC didn't forgot her memory (there's a little amnesia arc), it'll be reeeeaaaally hard for MC and him to got together. also he's the last one to do the deed with MC.

2nd ML: Qu Ze, younger stepbrother, I love his role so so much. a clingy younger stepbro. he's the second snusnu (it's r*pe for their first time though, but he got his retribution afterwards).

3rd ML: Bai Mingzhe, MC's first love and first boyfriend. MC first snusnu with him. He died (faked his death). but because MC got a bit of amnesia, despite him alrd telling MC that he need to fake his death and thus can't see MC for a while. MC thought he die for real and move on with 1st ML because she realized 2nd ML (her stepbro) have feelings for her.