It's Not Easy to Be a Man After Travelling to the Future (WN) - Chapter 31: The Weak Have No Right to Speak

After a vacation, when she returned to her country she caught her fiancé cheating. She angrily left and disappeared.

Five years later she returned with her talented kid. Afterwards, her son participated in the piano competition. Unexpectedly her son actually came looking for his father.

“The camera on this side, take me to take a look! My name is Xiaoxi my mommy is called Tang Siyu and she’s very pretty! I’m four and a half years old this year. I’m looking for my father, you probably look like me, please be sure to contact me, oh!”

After that, he was gone from the front of the camera again and said, “Oh, I’ll wait for you!”

In the background, a woman became mad. A few days later, a mysterious man came to their doorstep and claimed to be Little Xi’s father.

Tang Siyu looked at this tall and handsome man, who her son was a carbon copy of, and then became angry.

Five years ago, the bastard who pinned her down was him?

- Description from Novelupdates

With divine medical skills in his left hand and supreme martial arts in his right, carrying a century of memories, he was reborn and returned to the city. This life, he vowed to dominate everything, take control of all, and ascend to the zenith of the heavens!

When Peter is transported to a brutal system-driven world, where stats, skills, and paths to power are granted upon turning eighteen... He gets nothing.Thrown into a military training regime where the weak are discarded and the strong survive, Peter should have been erased.Alongside Thea, a fierce warrior, and Elric a determined healer, Peter claws his way forward. Creating and rediscovering the secrets of Cultivation and World Force.But as he defies the rules of the world, the world starts to notice.