Akari, the wife of a man who married and lived in his husband's home. My brother-in-law came back to his husband's house for a while because the writer's job didn't go well. My brother-in-law, who has spent a sluggish day in his work and private life, witnesses the night of his younger brother and wife. My brother-in-law lost reason because his sweaty, ripe body reflected in the hot summer heat. He can't put up with it and commits a crime, but for some reason he is attracted by his brother-in-law. On a tropical night, the two men seek to intercourse deeply with each other in sweat and body fluid.