Hitori Tsuma

Yukina visits her husband in the hospital after a work injury, only to find him flirting with other women. Frustrated, she sits alone in the hallway, where a young man named Yuto offers her coffee. He is visiting his new girlfriend, and his kind, refreshing demeanor contrasts sharply with her husband's behavior. For Yukina, this chance encounter becomes a fleeting distraction.

Later, she sees a flyer for a part-time job at a newly opened café and decides to apply. To her surprise, Yuto is the owner, and she is hired on the spot. Working alone with him, the married woman who once devoted herself entirely to her husband now finds herself drawn into a daily life of forbidden temptation, where every moment blurs the line between innocence and transgression.