JUFE-249 Memories of my youth, when my parents were on their honeymoon, and I forgot my rationality and lusted after my cute sister-in-law with beautiful breasts. - Miu Narumi

When I was a student, my father decided to remarry. - My new mother has a daughter who is younger than me and her name is Miu. - Miu treated me very naturally, even though I was a dull person with few friends and few words. - I was gradually captivated by her pure, bright personality, and cute, feminine, bulging body. - One day, my parents are going on a late honeymoon, and I end up spending a few days alone with my sister-in-law, Miu. - I never imagined that something like that would happen...