It's been two years since I married into the Sasaki family. My life with my kind husband and strict father-in-law has settled down considerably. The other day, I was quietly satisfying my unfulfilled womanly desires in my bedroom one afternoon. Unfortunately, my father-in-law, who lives with me, saw me masturbating in an embarrassing manner... alas... From that day on, my father-in-law began his "secret bride training" for me. And today, I cry out, "Father-in-law, I'm sorry I'm a masochistic wife..."