Talk about your extreme career changes! Naruse Soushi, a middle-aged man and private secretary to a politician, lies on the verge of death. Meanwhile, in another world, the princess knight Reina has been captured by an enemy nation. The princess' soul is removed - and Naruse is summoned into the empty husk of her body! Now that he's taken over the form of this beautiful young woman, he's doomed to her fate: being sold to a yuri brothel where he has to service female customers. He's determined to learn more about Reina's life before he took it over... while he finds a way to work the grind in her body!