My slutty sister (Sakura Kiryu) and her friends (Tsubasa Miyashita, Claire Muto, Marina Mori, Yuka Hayama, Luna Shimotsuki) are seduced by me (Manjiro Gaku) and my sister in their bunk bed, which has become a sex place for bimbo gals. , they give blowjobs and cunnilingus to each other and have raw sex over and over again