Sin System: Demonic Harem After Reincarnation - Chapter 13

For a million worth of contract, she became a surrogate mother.

He was the chief executive of the Empire and she was of lowly birth. With her adoptive father’s business falling into crisis, she agrees to his contract.

She gave birth to twins: the older brother is healthy, while the younger brother didn’t breathe out. Fulfilling the contract with a huge monetary sum as the reward, she disappeared from his eyes.

Six years later – he was still the cold high-profile president, but when she is accidentally imprisoned in the cage of his golden birds he pressured her harder and harder: “Woman, do not think you can escape my hands!”

The old-fashioned man: “Mu Yazhe, you’d better leave her alone, this is the child’s mother!” The man becomes frightened, questioning the reason this child’s features bears such resemblance to…

Project BIOHUMAN was supposed to be a quiet project that tested to see if they could create superhuman beings. The Creator, Dr. Vang Chang created the Numbers, ten individuals who took the BIOHUMAN serum and came out different.

Countries caught wind of this and demanded the Creator to disperse the serum to strengthen the humans. The BIOHUMAN serum was shot into the sky and dispersed all over the world. Little did anyone know, it changed Earth and everything living on it. Plants, animals and humans were genetically changed forever.

25 years later, the Creator's son, Lee Seng Chang is a high school student without any Biohuman powers. The serum had given him almost no Dark Matter and only increased his overall human abilities to a super-Biohuman level. Even with that, the power standing only made him seen as the weakest amongst everyone.

Picked on because of his powerless status, Lee Seng was left by all of his friends and labeled powerless. He desperately tries to keep going with a smile on his face. Lee Seng one day gets an option from a man with a Fox mask.

“Awaken your power but at a huge price.”

Lee Seng takes the deal and watches as the world he knew quickly changes and isn't what it seems. Put under the pressures of his Father's status and his new profound power and changes, Lee Seng battles the demons within him and the unknown coming for him.

Zhou Yu, a reclusive otaku, who did not like to go out of his house, was one day forced out of his house by a series of unexpected events.

- Description from Novelupdates

The Swordmaster who has returned by chance to save the world!