Newly appointed resident Cheng Yanzhou looks casual, slacking off and idling, entering a Class III Grade A emergency department via the green channel with an ordinary undergraduate degree. He is questioned by the director as a connection-hire and mocked by all colleagues in the hospital. He routinely slacks off with a Buddhist mindset and dislikes socializing, yet in emergency after emergency, with precision and clinical foundations far exceeding senior physicians, he repeatedly predicts hidden critical illnesses, stunning the whole hospital and staging a workplace counterattack of a low-key bigshot!