The story begins with a familiar, almost teasing conversation between two parents — お母さん and お父さん — about the busy lives of their children and the pressure of starting a family. The couple, clearly still very much in love, share a warm, almost playful tension as they discuss their hopes of soon welcoming a new addition to their family. お母さん gently teases お父さん about his past lack of patience, recalling how he was barely able to wait a month before trying again. But now, with a new plan in place — a family trip to a温泉 (onsen) where お父さん is expected to practice self-control — the stage is set for a test of will and desire.
As the family prepares for the trip, the atmosphere shifts, filled with anticipation and a subtle promise of what’s to come. The journey to the温泉 is filled with excitement, and the promise of hot springs and relaxation seems to offer a perfect escape. But when the time comes, the tension between お父さん and お母さん resurfaces, and the promise of restraint quickly turns into a struggle of passion and longing. The onsen becomes the setting for a deep emotional and physical connection, as the couple finds themselves unable to resist the pull of their love and desire.
The night of the温泉 becomes a moment of climax and release, where the promise of patience gives way to a beautiful, almost overwhelming experience of love. The couple's journey through the onsen becomes a journey through their emotions, their memories, and their hopes for the future. As they return to their daily lives, the secret of their shared moment remains between them — a beautiful, intimate promise of love and connection.
