MIDE-823 A sister from my parent's remarriage, just one month older than me and always lording it over me. She comes to me every day for that. Mia Nanase.

The father remarries and becomes a new mother and her daughter. She's small and cute, like my little sister, but are we the same age? But as soon as I heard my constellation, it suddenly changed! Knowing that I was born first, I suddenly took out the mount! A de S sister who always looks from above is born. Knowing my virginity, mount brush down! If it's a boring class, even if there are people around me, I'll give a handjob just to kill time! Cowgirl wanting to mount up to the position! A mount girl who looks like a younger sister but is a big sister!