In a cozy apartment filled with the warmth of a new beginning, the tension between two lovers, しんいちくん and マヒロ, reaches its peak. As マヒロ approaches her seventh month of pregnancy, the emotional strain of their relationship becomes more apparent. Daily arguments and mood swings have become the norm, leaving しんいちくん exhausted. Just when things seem to be at their worst, お母さん arrives, offering her help as the long-term housekeeper, bringing both comfort and unexpected complications.
With her presence, the atmosphere shifts. お母さん becomes a calming force, yet her own desires and memories resurface, creating a new layer of intimacy and conflict. The bond between しんいちくん and マヒロ is tested further when お母さん's affection and attention begin to stir feelings that neither expected. As the days pass, the couple's connection deepens, even as their arguments continue.
The journey leads to a climactic moment in the living room, where the emotional and physical tension between しんいちくん and マヒロ finally culminates in an intense, passionate encounter. Surrounded by the comfort of お母さん’s presence, the two lovers find a new kind of unity, even as the anticipation of the baby’s arrival brings both excitement and anxiety.
As the story unfolds, the bond between しんいちくん and マヒロ grows stronger, even as the presence of お母さん adds a new dimension to their relationship. The journey from tension and emotional instability to a moment of pure intimacy highlights the depth of their connection. With the arrival of their child on the horizon, the promise of a new chapter in their lives is just beginning.