Siheyuan: The Crueler the Methods, the Richer the Rewards

One winter, Han Xiaodong unexpectedly transmigrates into the body of a man with the same name living in a courtyard.

The original owner was tormented and bullied by the nasty residents until he died with bitter resentment.

Now,

Han Xiaodong has bound himself to a System.

Its very first mission is to teach Bang Geng a lesson for bullying his little sister.

The harsher the punishment, the better the rewards.

Well, well.

Picking on nasty people? I know exactly how to do that!