KTRA-486 — A Dirty Daily Life With A Neat And Caring Little Sister Who Takes Care Of My Sexual Needs Mikuru Byakuya

Mikuru is a serious, cute, caring little sister. One morning, she helps her brother get changed after he overslept, but he has morning wood! He gets excited when his sister is surprised by his erect penis, so he makes her touch his penis and help him get it fixed... From that day on, the brother started using his sister to satisfy his sexual needs...