JUQ-209 At home alone with my sister-in-law

I know Atsushi-san, an engineer in America and married. I'm not very familiar with Japanese culture, but most of all, my father-in-law looked at me with mischievous eyes. One day, my husband went on a business trip and decided to live alone with my father-in-law. My father-in-law approached me as if he saw through everything for me, who spent time miserable without being able to spend time with my husband.