It was exactly one year ago that the lives of us living in the same apartment building were thrown into chaos. We each had our virginity taken by the married woman who moved in, Mrs. Tachibana, at different times, and we fell for her body and soul. All of us maintained relationships with Tachibana while trying to get ahead of each other, believing we were the ones worthy of her.
One day, she told us she was going to her husband who was on a business trip abroad, and we were shocked. Desperate to stop her at all costs, we clung to Tachibana, saying, "We'll do anything you say!" But that was the beginning of a huge mistake.