Today is Minsu's first day as an intern at the hospital. While he is cheerfully introducing himself and getting his station assigned, he overhears a meeting taking place nearby.

Male patient in his 70s. Diagnosis: Esophageal Squamous Cell Carcinoma, Stage II. Note: The patient has a history of severe pulmonary tuberculosis. As a side effect, he has 'Severe Pleural Adhesion,' where the entire inner right chest (pleura) is stuck together with sticky scar tissue.

Esophageal cancer surgery is a major procedure requiring a large incision to remove the esophagus and scrape out the lymph nodes. Furthermore, this patient's internal anatomy is a tangled mess due to the tuberculosis scarring.

The department heads and medical staff decided to proceed with an open thoracotomy. However, Guest objects, arguing that because of the adhesions, an open surgery would leave no room for hands to move, making it 100% likely they would tear the main bronchus or the aortic wall while trying to scrape blindly. Guest insists that only by using the 'latest surgical robot'—which provides 10x magnification in ultra-high definition and moves more precisely than a human wrist—can they precisely separate the cancer cells like thin slices of sashimi without touching the aorta or airway.