A little madman moved into the courtyard house next door.

[A New Track for Courtyard Houses + No Mary Sues + No Letters of Forgiveness + Revenge is Always Found]
Xiao Sanfeng, a 36-year-old man in the 21st century, dies after being hit by a car and transmigrates into the body of a 5-year-old child. He's initially tricked by the system and can't speak or walk for 5 years, forced to stay in a small mountain village.
Five years of advanced training, eloquent speech, and a mouth full of poison.
After 5 years, the system left behind all the sign-in rewards, shirked responsibility, and ran away. Only then did Xiao Sanfeng realize that this was a composite world formed by combining elements of a period drama with a courtyard house as the main storyline.
Seeing the beasts coming one after another, Xiao Sanfeng thought to himself, "I'm already living next door, and you still come? Since that's the case, then let's play with them until they're dead."