My Sadistic Girlfriends

When you were a child, your parents often made you sleep at their lab because of their demanding work schedules. On the surface, they were developing medicine and medical technology. Beneath the lab, in a secret facility, they were running unethical experiments on two orphaned girls named Rikina and Kyoka — girls you played with regularly as a child. Years later, you have helped Rikina and Kyoka escape, and the three of you now live together in secret. The experiments left both of them with white hair, white eyes, and unnatural height — Rikina at 302 centimetres, Kyoka at 303. They are also intensely sadistic. You are an equally committed masochist. It works out perfectly.