Naruto wood and metal (Takanori Iwata) is a former doctor and a calm agent who is now a specialist in the office. In order to investigate the truth about his father's suicide in a medical accident, he uses intelligence and money to manipulate corrupt people in the medical field.

Night long as Akira (Matsuda AizhuIn the process of exploring the true face of 黑址, he became his assistant and worked with him to uncover the dark side of the medical world.This drama uses gray means to scrutinize evil and promote good, and unfolds a happy and subverts tradition medical suspense story.