After being stood up by her boyfriend at the fireworks festival, Rikka Ono calls up her childhood friend to lift her spirits. On their way back, a sudden downpour leaves them both soaked. They rush into a love hotel and, after a quick kiss and a passionate embrace, engage in heavy sex, mixing rain and bodily fluids, culminating in multiple creampies. Crossing the line, the two continue to mate like wild animals until sunrise.