Siheyuan: The Supreme System Grants Invincibility Through Sign-Ins

Wu Yao transmigrates into a courtyard and binds himself to the Supreme System. He earns rare supplies through sign-ins and becomes a key technician at the steel mill. When Yi Zhonghai schemes to keep a house for himself and Qin Huairu tries to cozy up to him, Wu Yao coolly sees through their plans and becomes a legend in the courtyard.