After enduring ongoing emotional distance from her husband and crushed by loneliness, Sumire once again finds herself alone, seeking comfort in self-pleasure. Though she knows what fulfillment feels like, she still faces another day consumed by solitude. One day, a massage therapist named Ando visits her home under the guise of a sales call and begins to seduce her. Lured by his smooth talk, Sumire invites him inside. The oil massage gradually shifts to her sensitive nipples, and despite her inner resistance, her body surrenders to Ando's skilled touch. Beyond just oil, her pussy grows wet, thoroughly stirred until she reaches a powerful orgasm. Awakened by this intense pleasure, Sumire later takes the initiative, inviting Ando back to her home in pursuit of even deeper satisfaction.