DASD-860 Sara Aizawa, the man next door who helped me become an adult when I was a virgin

I just go back and forth between home and school every day. - One day, a super beautiful older sister moved into the apartment next door! - Once I became friends with the older sister, she called me to her room, so I told her how I liked her and she took my virginity away! Things turned out like a dream! - But there was a secret between my sister's crotches that I didn't know about...