Da Tang Shuang Long Zhuan - Book 63: Chapter 2: Enmity Disappears, Hatred Gone

Su Li has never expected that those she met in her first life would follow her to a new life in a new family.

Doomsday comes, and human beings enter the heavenly world.
Ten years later, Yang Chen, who was betrayed tragically, returned strongly with the Tianyu bug. In this life, he vowed to make the betrayal pay the price. He has a powerful bug bonus, just like an open hang. Frightened to hear…

- Description from novelbuddy

A little ruffian who fought recklessly without any morals and bottomline accidentally time-traveled to parallel space and became a Key Case Investigation Team agent. The huge change in identity had him creating chaos in the police station. However, a strange miracle system helped him repeatedly solve mysterious cases, turning him into an impudent ruffian detective!

The world I transmigrated into was a dark fantasy game universe, devoid of hope or dreams.Doesn’t feel like it at all, though.