Siheyuan: My System Can Turn Things into Grain

Zhang Weidong transmigrates into the frail, sickly son of a courtyard family and binds himself to a god-tier sign-in System. To feed his three-year-old little sister, he conjures rice and eggs. When Banggeng comes to steal their food again, Zhang Weidong breaks a brick with one punch. "Little thief, this fist is harder than grain."