It was the winter of five years ago when I was unfaithful. My husband's affair was discovered and I was plunged into indescribable loneliness. Whether or not he knew about my heartache, my son's friend, Sho-kun, confessed to me. Even though I knew it was unforgivable, every time an older boy asked for my body, my guilt was drowned out by a strong, blue pleasure... As she spent all day making excuses like, 'I'll just play with fire once', she felt more and more in love with him...