Hades Mason, a modern obstetrician, is in a death row convict's body alongside his sister-in-law for not providing a child as a remedy for the prince. Luckily, the palace is seeking someone to help induce the noble consort's lactation. Using his medical expertise, Hades seizes the opportunity, survives the ordeal, and gradually establishes himself in the palace by resolving multiple crises with modern gynecological techniques.