Makoto Himemeya is a student, an excellent student and a little pervert with a strong libido. The other day, Makoto confessed her love to childhood friend Kaworu and kissed for the first time. After such an incredible and memorable event, our heroine decided to masturbate a little while watching another bang and relieve the accumulated excitement. This daily process of arousal and masturbation was silently watched by her stepbrother. However, one day, when Makoto invited her boyfriend to visit, he decided to intervene and satisfy his sister’s lust.