Midori is fed up with her husband's mail-order deliveries that arrive almost every day. One day, she falls in love with a young man named Kenichi who comes to deliver the package, and from that day on, she secretly looks forward to receiving the package... Then, Midori musters up her courage and brings Kenichi home, and for the first time in a long time, she gives her chastity to Kenichi, who sees her as a woman. Midori feels the joy of being a woman through intense sex with Kenichi, and she uses the opportunity to use the mail-order service to meet up with him, but...