Despite abstaining from sex and storing up sperm in order to get pregnant, my stepsister got soaked in the rain, leaving us alone, and my desire became unbearable… (Azusa Mitsuori, ADN-715)

I have a very high sex drive, and masturbating twice a day is a daily routine. Perhaps because of this, when I have sex with my wife, who is trying to conceive, I don't have enough sperm, and I haven't been able to conceive. My impatient wife scolded me, telling me to abstain from sex for three days. Although I reluctantly endured it, just then, my stepsister, Hikari, arrived in the pouring rain, completely soaked. My wife wasn't home, and I was alone with my stepsister, whose breasts were soaked… …Unable to suppress my pent-up sexual desire for the past three days, I attacked my stepsister.