A few months after marrying Takeru (26 years old), who she met at work and is more than a decade younger than her, Mirei has been enjoying her happy married life. Regardless of the time of day or night, regardless of the location, the two of them seek each other out... and make love until they are both satisfied... However, one day, just when it seemed that their happy days would last forever, a small rift appears between them due to the difference in values caused by their age difference. However, a few days later, the two make up. But it is due to an unexpected and fateful event...