A young woman named Tsubasa moves into a certain apartment complex with her husband and son. She finds herself increasingly attracted to other men despite her love for her husband, and her son often leaves her feeling lonely. One day, while cleaning up garbage left by their neighbor in the shared hallway, she decides to confront him about his mess. He invites her into his home where she experiences an unusual sensation (non-routine...). As she stands amidst the clutter and lingering odors that permeate the room, she realizes there's something more than just annoyance brewing within her. Note: Content may vary depending on distribution method.