Amid the Showa-era streets and sweltering summer sunshine, his niece returns home to the countryside. Meeting his niece for the first time in a long time, the uncle's heart pounds and he can't hide his excitement. He gazes intently at his niece's body and smiles. Drawn to her small, still-growing bulge and the sweet and sour scent emanating from her hot, sweaty body, he loses all sense of reason and begins caressing his niece relentlessly, playing with her like a madman...