Harumi Kanemoto's husband is away on a business trip, leaving her alone at home. Her daughter's lover, who has discovered her secret, uses it to blackmail her. Helpless and trapped, Harumi is forced into a compromising position with her daughter present, resulting in a mother-daughter threesome scenario. Under the threat of exposure, she surrenders to the man's demands, exposing her vulnerable body. The story unfolds with intense emotional conflict as the complex relationships between mother, daughter, and the lover entangle in a dramatic and twisted narrative. Produced by Dream Stage under the Mature Woman Picture Scroll label, this film explores themes of blackmail, restraint, and the cowgirl position.