MTL - Heyday Love: A Heaven-sent Husband - Chapter 2 Let's get married!

I reincarnated as Luna, a supporting character who is accused of ruining the heroine and hero’s relationship, and is mu*dered. I’m not interested in someone else’s man, but the heroine’s friends bully me every day. “Why are you trying to get close to someone who’s already taken?” “That’s right, please stop! Why are you doing this?” “Stop doing such terrible things!” So Luna decides to announce it in front of everyone. “I don’t want someone like Fersen even if you beg me to take him so stop bothering me. I’d rather date Anthes Vincent, who’s rumored to be insane.” And soon she meets someone who she never expected to meet…… “I heard you have an interest in me? The truth is, I do too. Is it a coincidence?”

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

- Description from Novelupdates

Shao Xuan joins a friend in his expedition to a recently discovered archaeological cave. After he picks up an ordinary looking stone he is teleported to a different world and wakes up in the body of a small orphan child. The world he is in now is still in its stone age with primitive tools made of stone and the ways of the people are savage. Savage isn’t the only thing special about the people though, because they have superhuman strength, jump higher than trees and punch stones. In short, they are able to cultivate their bodies. Despite all this, it is a real struggle to survive because of the scarcity of food. Together with Caesar, his pet wolf, he tries to survive in this cruel world.

- Description from novelupdates

An Unexpected Turn: Villain Becomes DadIn a hilarious twist of fate, Yang Chen is reborn as the brainless villain in a romance novel, already at odds with the destined hero, Lin Yan. Knowing he can’t directly challenge him; Yang Chen makes a strategic move – saving Lin Yan’s mother from a chronic illness.This act of kindness blossoms into love, and a year later, they welcome a child. Yang Chen, hoping for a peaceful family life with his wife and son, is met with a shocking system notification:[Host’s son is born, plundering his elder brother, the male lead’s Providence Luck by 3000 points!] [The Great Villain System is officially activated!]The system throws Yang Chen’s plans into chaos. He’s forced to become the antagonist he was originally destined to be, but with a hilarious twist – his target is now his own stepson!