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? 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.
