my parents divorced when i was young. i'm staying at my father's house while attending university, but there was a source of trouble. that was hibiki-san, my father's mistress. one day, i was asked by hibiki-san, who works at the cabaret club run by my father, to take pictures for promotional materials. while being photographed, i was kissed by hibiki-san, who was excited, and i, who had no experience, received guidance while bewildered.