The Ruler Of Darkness - Chapter 4Book 7:

This world is not only as the public knows it; there is an underworld that ordinary people don't encounter.Government agents handle troubles in the shadows, while corporate assassins privately deal with issues.Assassins, mercenaries, arms dealers, and spies exist, along with a dark web that ties this world together, and tycoons who attempt to control everything with money.Gao Yi entered the underworld, unbeatable in close combat, carving out his own domain.But there are guns in this world. Beyond seven steps (close combats), guns are faster.Within seven steps, guns are both accurate and quick.Only within three steps does Gao Yi's punch become faster.Unable to beat them, he chose to join them, aiming to rule them all.To rule everything, become the king of killers in the eyes of mercenaries, the king of spies in the eyes of assassins, the king of killers in the eyes of spies, and the king of intelligence in the eyes of arms dealers.Until he is crowned king by the entire underworld, Gao Yi is the ultimate firepower.

500 years ago, Chen Xi was devoured by a crack in the void and was transported into a cultivation world.

500 years later, he returned back to Earth after enduring through several hardships and discovered that only 5 years had gone by.

…

In the courtyard, beauty at the side, a candle flame wavering.

A gush of clear wind, half a full moon, the peach tree remains unchanging.

…

Wait, whose kid is this?! Why is she calling me papa? Gazing at the little girl in front of him with skin as pale as jade, Chen Xi froze.

…

　
Returning home from cultivation, starting as a stay-at-home dad.

In this life, not fighting to be a king nor claiming to be a tyrant, only praying to peacefully be a wife-pampering mad devil and a child-protecting daddy!

- Description from Novelupdates

Liam, a teenager plagued by low self-esteem and the target of relentless bullying at school, faces a grim reality. On his way home one fateful day, his life takes a tragic turn when he's struck by a hit-and-run driver, left to die alone on the street as the world seemingly forgets him. As he feels his life slipping away, he closes his eyes, believing it to be his end.To his astonishment, Liam awakens not in death but back in his modest home, the only legacy left by his late mother. As he opens his eyes, a strange, ethereal message appears before him:[World Conquerer System Awakened][Conquer The World §¢¥% Error][System Reboot][Lust System Awakened][Mission - Conquer The World and its beauties]Now endowed with an enigmatic system that promises power and allure, Liam's life is given a second chance with a purpose far beyond his wildest dreams. The Lust System grants him abilities to charm and conquer, turning his once-dull existence into a quest for dominance. With a new resolve, Liam sets out to transform from the school's underdog to its master, navigating through challenges, rivalries, and the complexities of power and desire.His journey will see him rise from obscurity, using his newfound abilities to not only avenge his past humiliations but to claim the hearts and loyalties of those around him, aiming to become the unrivaled number one in this world where beauty, power, and conquest intertwine.Shameless Mc/Milf/Smut/Harem/beauty/system/No Yuri/No Ntr/Overpowered

He is very cold and passionate, Mu Yanwang, who means what he says. He has always regarded women as dirt but she, he has only spoiled her.