Rei (Mochizuki Rumi), who is living a monotonous daily life and a cold life with her husband, casually thinks she wants to bloom as a woman again while spending her days. At such a time, she accidentally sees her nephew, Kenta, who used to stay over whenever he fought with his parents, masturbating while sniffing her underwear. Despite her surprise, she feels a long-lost pleasure as a woman... "Is it really okay with such an aunt?" He gently exchanges kisses with her...