DVRT-009 — The Switch That Turns A Bad Sister Into A Masochistic Bitch, Waka Ninomiya

My sister is famous for being a bad girl in our hometown, but she has a switch that makes her turn into a masochistic slut. She's always treated me like a slave, so I raped her when she turned into a masochistic slut! But... I didn't know that she'd gone back to normal, so I had no choice but to pray to God (crying)