During a educational trip to a historic wooden house, a young woman finds herself battling an unexpected bout of diarrhea. Despite her best efforts to hold it in, her condition worsens, leading her on a frantic search for a private and comfortable spot to relieve herself. In her desperation, she discovers a hole in the wooden floor and decides to make use of it. Wasting no time, she removes her underwear and begins to release not just streams of feces, but also urine.