With her husband away on a long-term work assignment, Yuka lets her adult nephew Toshiya stay with her because his family home is far from his new job. It was only supposed to last until he found a decent place, but she enjoys living with the cheerful, energetic young man. Then one day, Yuka steps out of the bath and catches Toshiya blissfully sniffing the warm panties she had just taken off. “T-Toshiya... what are you doing?” Confused, Yuka finds herself unable to look away from the cock tenting his pants...