A few years after marrying her high school sweetheart, Sora found herself living a completely different life when things took a turn for the worse. Her husband had failed in business and was now saddled with a massive debt, forcing him to work long hours at a family restaurant while lying to their wife about his true occupation. One day, he was sent to work at a hotel where he encountered none other than his perverted former teacher, Koizumi. Despite trying to maintain secrecy, they were unable to resist each other's advances. As they engaged in various sexual acts, Sora began to enjoy the attention she was receiving from this dominant man who seemed to know exactly what she needed. Little did she know that her world was about to be turned upside down yet again...