After concluding their office romance with marriage registration, the Mizuki couple. Akane, the wife, was nervous throughout because she had to visit her husband's family home. However, what greeted Akane's eyes upon arriving at her husband's family home was her sister-in-law Yoyoi dressed in a fundoshi. As Akane stared in shock, her husband also began changing into a fundoshi. It turned out to be a family tradition where everyone wore a fundoshi around their lower body, but she couldn't hide her bewilderment at this custom.
