Sweating older sister-in-law seduces me upon my return home, leading to pregnancy and active intercourse. (Mito Kana JUL-511)

Jiro returns to his hometown in the summer. He finds his older brother and sister-in-law undergoing infertility treatment, and the atmosphere becomes somewhat awkward... That night, he secretly watches his brother and sister-in-law make love, observing Kana's lewd posture...