Gimai Seikatsu - Days With My Step Sister - Chapter 17 - 4

Xue Ling is a nine tailed fox who has been cultivating for thousands of years but lost all his tails in a moment of capriciousness.

She was once an heiress, but later her family went bankrupt, and her fiancé betrayed her. Besides, she had to bear the expensive medical expenses of her brother. Therefore, to regain everything, she decidedly married her ex's cousin in a deal. Initially, he was very aloof and didn't care about women at all, but he gradually fell in love with her, protecting her and supporting her...

Ye Xi crossed over into a typical idol romance novel as the villainess.

For the sake of her safety, she decided to distance herself from the male and female protagonists while silently observing their real-life version of a school idol drama. Everyday, she would repeatedly ridicule the main protagonists in her thoughts, along with their group of friends and fans.

It’s not surprising, however, that the male protagonist’s special ability is to hear the voices of other people’s thoughts. So he listened to all kinds of curses that Ye Xi secretly harbored and recorded them one by one.

Expressionless Male Protagonist: the future is long, your debts will slowly be collected.

Ye Xi covers her ears: I’m not listening, not listening, *recites Wang Ba’s Sutras*

- Description from Novelupdates

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.