Yui marries a man who has a young son from a previous relationship, determined to start a new life together. However, unfamiliar with parenting, she struggles with the challenges of raising her stepson Jun while trying to build a happy home. Just as things begin to settle, her ex-boyfriend suddenly reappears—a mentally unstable man who had always opposed her marriage and now aggressively demands her body. Unbeknownst to her, Jun secretly records everything, and ultimately witnesses Yui being taken by force right before his eyes... Plus four additional stories.