A married woman named Akari lives with her husband's family. Her brother-in-law, a writer struggling with his career, returns home temporarily. Frustrated in both his professional and personal life, one night he witnesses his younger brother's couple's intimate activities. The oppressive summer heat makes Tomoka's sweaty, ripe body dazzle, causing him to lose control... Unable to hold back, he rapes his sister-in-law. However, for some reason, Akari is drawn to her brother-in-law. On a sultry night, the two are drenched in sweat and bodily fluids as they engage in intense intercourse, craving each other.
