Reborn as God: The strongest system - Chapter 43 You Must Die

Avo was born to destroy New Vultun. In a twist of fate, he’ll become its only hope for salvation. The gods were the enemy. The slaver. The chains. With dreams of paradise, humanity slaughtered them and stole their powers, opening the path to become more – to ascend. Instead, they nearly destroyed the world. Vast hive cities serve as the final bastions against the crumbling of reality. New Vultun is the greatest of them all, and within its borders, ascenders wage war to determine the laws of existence itself. The world descends ever deeper into ruination. Avo was born a weapon, a slave to his instincts and his masters. He and his brothers were made to burn New Vultun to ashes. Everything changes when Avo gains immortality and becomes heir to an impossible legacy. He must ascend the megacity of New Vultun. He must challenge the very tyrants that usurped the gods. He must finally free the world from chains.

System, “You have a sickness. Moreover, you’ll have one in every world.”

Hao Ritian, “…”

System, “What’s wrong? Is there a problem?”

Hao Ritian smiled, “No, there’s no problem. I was just a bit excited.”

System, “…”

That smile intensified the system’s feeling of ominous foreboding. It has had this premonition since it learned the name of its host. Now it only prays that this is all its imagination!

Ps: Protagonist shou 1v1, the gong is always the same person.

- Description from Novelupdates

An Individual from Earth finds themselves in the Shinobi World, equipped with a Scientific System. From that moment, he delved into scientific research far ahead of its time.

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.”