263NACR-901 The first woman was dad's mistress Sumire Mizukawa

When I was young, my parents got divorced. After entering university, I stayed at my father's place, but there was a source of trouble. That was my father's mistress, Sumire-san. One day, I was asked by Sumire-san, who works at the cabaret club run by my father, to take photos for promotional materials. While being photographed, Sumire-san got excited and kissed me. I was confused but received her guidance since I had no experience.