Married woman Shiori (34 years old). Burdened by guilt toward her husband, she can't sleep at night. Yesterday, she prepared only her husband's favorite dishes, telling herself it's "the least she can do to atone," yet deep down, she feels a quiet sadness. Five years into marriage, both are busy with work and barely talk anymore. Seeking an escape from this routine and hoping to soothe her heart, she embarks on a trip. Exposed to unfamiliar thrills, her emotions tremble, wrapped in the sweet, forbidden pleasure of infidelity. Her figure, torn between guilt and desire, is painfully melancholic yet irresistibly seductive.