[ENGLISH-SUBTITLE] JUX-508 In this way, my brother-in-law became mine. Mami Sawajiri

Jiro, a younger brother who lives with his brother and his wife. My brother-in-law, Mami, used to be Jiro's tutor, and since then Jiro has been in favor of Mami. One day, Jiro, who had been taught to study by Mami, sees it. Where my brother and Mami