Minami Kojima has been married for more than a year and her married life is not very happy as her husband often goes away on business trips. Minami always felt bored until one day Yuki appeared. He was a gentle and hard-working student who accidentally caught the eye of the married woman Minami. She wants to get to know Yuki and all those naive students. First she will seduce Yuki and eventually she will want to have group sex with inexperienced college guys.