One weekend afternoon, a woman visits the protagonist, who spends his days overwhelmed by work. "Hello! I'm Miki, your Rental Wife, and I'll be in charge starting today!" Standing at the entrance with a beaming smile is Miki, a 32-year-old married woman. Her bright and friendly personality allows her to close the distance between people so naturally it's hard to believe it's a first meeting. Rental Wife—a special service that provides the "ideal domestic experience," including housework, shopping, dining companionship, and someone to talk to. During the contract period, Miki stays close to the protagonist's wishes, making his daily life a little more special. "What kind of day would you like to have today? I'll do my very best to help with whatever I can!" Miki smiles as she speaks. Seeing that smile, the protagonist feels the tension in his heart lighten slightly. However, at this moment, no one yet knew that this encounter would move their fates in an unexpected direction.