EKDV-537 The younger sister who loves her big brother too much tempts him with a thigh-high skirt peek

This is an incident! From today, my mom remarried and a new family has increased. A new dad and a new home. Besides, I got a big brother. Life with four people... what will happen? I'm so excited! What if the older brother fell in love with the younger sister... or something like an anime-like development, or trying to seduce the older brother with a panchira of the heart... Kyaa! I can't stop being excited just thinking about it... A bold and erotic story about Kokoro Amami, who looks great in knee socks, and her brother who loves knee socks and underwear.