Ritsuko is troubled by her husband's waning interest and decides to take on a part-time job in an attempt to rekindle their relationship. However, their marriage fails to improve, leaving her with a lingering sense of unease in her daily life. Her coworker Kazuya notices her distress and sincerely shows her care and compassion. His warm words encourage her, and gradually, Ritsuko begins to open up. Meanwhile, Kazuya has long been waiting for the day he could finally confess his feelings to her. As their bond deepens, a romantic attraction they've never felt before begins to blossom between them.