MTL - The Apocalypse’s Great Merchant - Chapter 18 Black rain

At nineteen, Alex Lane's life revolved around caring for his sister, Iris, after their parents' death. When Iris was diagnosed with Breast cancer, Alex turned to running illegal packages to pay for her treatment. His life spiraled into chaos after running into problems with the most dangerous gang in the city, the BlackWolf Gang.Things turned ugly quickly when Alex and his sister, Iris, were hunted down by the BlackWolf Gang and unfortunately killed.But death wasn't the end.Nemesis, Goddess of Divine Retribution, saw in Alex the perfect instrument of karmic justice. She granted him rebirth as Andre Atlas, son of a reclusive billionaire, and gifted him the Karmic System—a power that grew stronger with each crime he committed, especially those serving as poetic justice against the powerful.Now, as Alex builds his criminal empire from the shadows of high society, with each crime bringing new supernatural abilities he will achieve his one goal.His goal: Destroy those that took everything from him!

In her previous life, Su Wenyue was driven by vanity. She abandoned her husband and child, ultimately meeting a tragic end when she was falsely accused and killed by the mistress of the house.

Her three-month-old unborn child perished with her. Meanwhile, the humble man she had looked down upon seized the opportunity in the chaotic times. He steadily climbed the ranks to become a high-ranking and powerful prime minister in the great kingdom.

Su Wenyue died in remorse. But upon awakening, she found herself back at the moment when she had just married into the Han family.

A wonder falling down from heaven! A boy possessed by strange blood! Gods tremble! Demons flee! A boy from the land of Dong Zhou. A pink skull as his sworn friend until death. A story of a determined warrior struggling for power. A legend that shakes the galaxy and disturbs the worlds of god, demon and man.

- Description from Novelupdates

Leo is an academic genius who enrolled in one of the top universities in the world for the rich and powerful, but he was born in a common family, which was more than enough of a reason for the other students to mess with him.