Siheyuan: From the Start, I Became a Dragonkin

After successfully taking revenge, Li Tian is reborn into the world of Love in the Courtyard. Thanks to his knowledge of the plot, Li Tian seduces the nurse in the medical department from the start, burns the Deaf Old Lady to death, eliminates the Jia father and son, plots to seize the Lou family's fortune and women, makes full use of the wealth of the capital, carries out the Li family's grand plan, and embraces the whole world.

PS1: The protagonist is a self-interested person and will decisively deal with anyone who stands in his way.