Keika, who had been married for three years, found her nights empty as her husband was always busy and they barely crossed paths. One day, on her way home from a part-time job, a sudden heavy rain halted public transportation, and Keika, completely soaked, returned to her workplace where she was alone with Suzuki, a fellow student. Both were initially confused, but Suzuki, excited by Keika's drenched appearance, took advantage of the situation to satisfy his own desires...