That JAV

A husband brings his brother-in-law, Yuji, home for the first time in a long time. His wife, Aya, is delighted to see him again and entertains him, but... Aya, who is weak and easily swayed by others' opinions, is seduced by Yuji, who knows about her infertility problems, and opens her legs to him. Aya's sexual desire is gradually aroused from within by Yuji's persistent and precise caresses, as he verbally makes her body glow with debauchery. Before she knew it, her body, which had been continuously developed, was being nurtured by her exciting infidelity with her brother-in-law...