Ryota is living with his aunt and his wife because he is attending a university outside the prefecture. - He could no longer control his desire as his aunt, Saki, whom he had loved and admired for a long time, was in front of him. - Ryota, filled with an unquenchable fever, comes up with the idea of masturbating Saki's underwear. - She secretly sneaks into the changing room and buries her face in her freshly taken off panties. - Ah... I can't stand it. - At the moment when I inhaled the sweet and sour scent, unfortunately Saki saw me...