MTL - Kingdom’s Bloodline - Chapter 14 Knife and sword (below)

In the foreign world, the martial artists dominate the world and the sword of the emperor controls the fate of hundreds of millions of lives! Long Yu, the number one killer on Earth, after dying, takes rebirth in this new world in an aristocratic family of martial artists but faces rejection because he is unable to practice martial arts.

- Description from Novelupdates

Aria Monroe married the city's coldest billionaire CEO to save her family, only to be betrayed by both him and them.Pregnant and discarded, she vanished without a trace.Three years later, she returns not as the broken woman they once mocked, but as the CEO of a rising empire.Her greatest secret? The child who carries the bloodline of the man who destroyed her.Now, the ruthless CEO who once rejected her is on his knees, begging for forgiveness. But forgiveness won't come easy. Rivals lurk, family betrays again, and temptation burns hotter than ever.This time, she's no pawn. She's the queen. And she'll decide who wins her heart if anyone at all.But when her son looks up at Damien Blackwood with those same ice-blue eyes and whispers “Daddy,” will the walls she's built around her heart finally crumble or will the ghosts of their past destroy them all?

A con-man and policewoman that are legends of their respective professions suddenly die, then are reincarnated and return to the Tang Dynasty of ancient China as little kids.

Accepting their second chance and forced restart, they choose to use the modern knowledge and specific talents that they have in their previous lives in order to live comfortably in this new life.

- Description from Novelupdates

I started off as nothing, just a mass of consciousness that slowly evolved. Just your average overpowered existence hungry for a multiverse adventure.