Takuma Kosugi works in an office and struggles to find time for household chores. To lighten his load, he buys a used cleaning robot called Mina, who quickly demonstrates her usefulness. One evening after a long day and several beers, Takuma jokingly tells Mina that she should become his wife. To his astonishment, Mina takes the comment literally, and over time they begin to act as a married couple.
As days pass, Takuma and Mina grow closer, sharing outings such as picnics and beach trips. Yet many people still view human‑robot relationships with suspicion. The pair must decide whether their bond can endure and how to persuade those around them of its authenticity.
