Start with the Mangekyo Sharingan: Follow Lord Madara out of Konoha - Chapter 27: How Dare You, Brat!

Lu Shang picked up a dirty teenager while discussing work at a bar. It was merely happenstance, but memories from ten years ago resurfaced when he saw the gunshot scars on the teenager’s back.

Lu Shang asked him, “What is your name?”

“Xiao Li… My surname is Li, so they all called me Xiao Li.”

“You don’t have a name?”

“I don’t remember.”

Lu Shang said, “Then I will call you Li Sui. From now on, you will be with me.”

From that day onward, a young “lover” was always by Lu Shang’s side.

Years later, Dr. Leung teased Lu Shang, “You didn’t get his heart, instead your heart caved in; boss Lu, that doesn’t seem like a bargain.”

Lou Yao Yao wasted her life fighting over a man, only to find out he wasn’t worth it in the end. Because of this man, she accidentally killed her rival in love, and even ruined the man who had always been watching over her.

Getting reborn as her 20 year old self, there is still time to fix everything. Lou Yao Yao decided to live as a genuine vicious woman. After getting her hands on the loyal like-a-dog man, she would show that cheating couple what pure loving affection looked like.

- Description from Novelupdates

Riven was nothing but a powerless runt until necromancers razed his village and butchered his sister before his eyes. As his blood soaked the dirt, his Sigil ignited, granting him a gift. He can die and reform, a cycle that resets with every rank he climbs.But fate wasn’t done screwing him.In the catacombs beneath the ruins, he found the Death Ledger—a death contract that bound him against his will to hunt those who’ve cheated death across dimensions. Historical legendary heroes and villains.From the noble King Arthur to the conqueror Genghis Khan and the fabled king of Uruk, Gilgamesh, together with Ivan the Terrible and Vlad the Impaler.Every mission is a gamble. Fail once, and the Ledger brands him a death-cheater, turning him into prey for the same immortal fugitives he hunts. And the reward? He gets to keep them as his undead summons.His enemies will not stop coming. They want the Ledger, the Sigil, his power. To survive, he will wield death itself, growing stronger with every soul he claims, because in a world this savage, only the relentless rise.[-Congratulations, you have successfully killed Alexander the Great and claimed him as your summon...you can start on the path of evolution-] The words, scrawled in blood, burned across the page of the Death Ledger.