Siheyuan: Reborn to Protect My Sister, Who Dares Challenge Us?

After waking up, Zhou An transmigrates to a Beijing courtyard house in the 1960s. He is bound to a System, inherits his uncle's estate, and has a timid younger sister who depends on him. He only wants to live a peaceful life, but the Jia family mother and son bully their way into his home and twist the truth, while the courtyard's three grandpas each have their own agenda and fan the flames. Li Yun casts off his weakness, fights evil with strength and outsmarts his way through trouble. He protects his sister, puts troublemakers in their place, and lays down the rules until everyone in the courtyard knows one thing: nobody messes with his family.