My sister-in-law, sweating profusely, seduced me upon my return home, resulting in pregnancy and active intercourse. (Fujimori Riho JUL-675)

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 making love, observing the lewd posture of his sister-in-law, Fujimori Riho...