Michiko Daimon is a gifted female surgeon not associated to any organization, moving from one hospital to another. She dislikes banding as groups, the game of politics, and being shackled to matters. Her only weapon is her professional license and her vast experiences and skills. Even if the patient's survival rate is low, and even if the operation may be critical, she faces the challenge without fear as “Doctor X.” With the greed and power-hunger found within a vast organization using the university hospital as a cover, she approaches her patient's life with intent of saving their lives. The 1st of a series of drama which took Japan by storm with its high ratings and rave reviews.