I Am in Marvel with Unlimited Cards - Chapter 5: The Super Soldier Project

A martial art expert from the Song dynasty lives like a Phoenix that can live again in another body after death. This time, he happened to take over the body of a Japanese high schooler who is also a victim of bullying and has a bit complicated family circumstances.

- Description from Novelupdates

[ Fusion Successful ][ Water Toad + Sky Dragonfly + Nightmare Moth + Bluefang Hyena= Nightmare Hydra ]----Yuki Igarashi, once a terminally ill boy confined to a hospital bed, dies with a silent wish for strength and freedom.That wish is mysteriously granted when he reincarnates into a fantastical new world. Not as a human, but as a newborn Frost Dragon.With his memories intact and curiosity alive, he is soon greeted by a mysterious system called the Dragon God System, which mistakenly binds itself to him, claiming he is not its original host. Still, it is now eternally bound to him.Despite his infant form and weak body, Yuki discovers he can extract bloodlines and skills from other creatures using the Dragon God Codex, and fuse them within a mysterious space called the Fusion Lab.Even more shocking, a glitch in the system allows him to repeatedly Fuse bloodlines without depleting them, opening the door to limitless growth.

# endoftheyearJi Yuanyuan was the type of person who would ruin a nicely dealt hand. She could have led a carefree life under her family and ex-husband’s protection. Alas, for the sake of a scum named Zhao Tianhua, she caused her mother to die an aggrieved death, her eldest brother to die in a foreign land, and her second brother to be run over by a car and had his head disembodied. She herself even died from childbirth in a shabby house at the countryside, and her baby was strangled to death by Zhao Tianhua. It was right before her death that she learned that her quiet ex-husband almost went mad searching for her.Ji Yuanyuan was reborn back into the 90s era with extreme luck and a mysterious spatial ability. Since then, Ji Yuanyuan would find money on the ground, boars would run into trees on their own if she was lost in the wild, and her investments would all be successful… When the b*stard scum, Zhao Tianhua approached her again, Ji Yuanyuan kicked him away and latched onto her ex-husband’s leg instead. “Sir, please protect me.”

This story is centered around the man named Yi Ji-Hyuk, who has spent 1000 years in a Medieval Western fantasy-like world before returning back to the modern-day Earth. When he returns, he finds that his home is facing monster threats, and that humans with superpowers have appeared to protect the innocent people of Earth.