Aya Kitagawa and her husband live in a house in Tokyo. Due to the recent economic downturn, her husband's income has drastically decreased. His company, pushing cost-cutting measures, has minimized overtime and now requires employees to leave promptly at the end of the workday. As a result, the couple began spending more time together than ever before. However, for Aya, this increased time together became a new source of excitement. Beautiful and highly sex-driven, she had grown weary of her stagnant daily routine. For her, time with her husband was no longer just mundane—it held unexpected potential. And so, their marital relationship began evolving in unforeseen directions.