As soon as he opened his eyes, Yang Zhiyuan changed from a modern project manager to a homeless man in Yanggu County in the second year of Xuanhe. He doesn't know how to punch or kick, and has no fame. The only golden finger is the project management thinking of a thirty-eight-year-old unemployed social worker - looking for rules, digging loopholes, and leveraging. Starting from rescuing Wu Dalang, who sells cooking cakes, he wants to use Gantt charts and KPIs to build a different empire in the late Northern Song Dynasty, which is about to collapse.