Kōjirō Himuro is a champion figure in skater who takes part in future world competitions. But he suffers from CTEPH (chronic thromboembolic pulmonary hypertension). Kantarō Kurosu is the director of the signaling medical center. He asks Michiko Daimon to do an operation on Himuro. But, right before the operation, Daimon loses her most important weapon as a surgeon.