Ever since he was a child, Hiroshi had been close with Risa. They had just gotten married and were planning to have a baby after some time, but Risa got pregnant early in their marriage. Hiroshi's plans went up in smoke. Since getting pregnant, Risa has lost all interest in sex, and conjugal relations are completely off the table. Hiroshi's balls are about to burst with pent-up frustration! Left with no choice, he lives a lonely life, masturbating to adult videos. Then one day, his sister-in-law Rin comes over to help with the housework…
