Ryota, living off his aunt and uncle to attend a university outside his prefecture, finds his desire for his long-admired aunt, Saki, increasingly uncontrollable in her presence. Driven by an insatiable heat, Ryota conceives of using Saki's underwear as a substitute. He stealthily sneaks into the changing room and buries his face in her freshly worn panties. Ah... unbearable. Inhaling the sweet, tangy scent to his heart's content, his bad luck strikes when he's caught by Saki...