Ruka and I have been childhood friends. We may be practically family now. And yet, I wonder why. Lately, I've been overcome by a strange feeling.

"I want to destroy Ruka."

I wonder if it's the influence of an adult video I watched recently. I don't know what's causing this feeling. The next thing I knew, I was saying strange things.

"Do you want to try some pretend S&M play?"

Ruka was hesitant, but went along with it. And so we became master and slave.

At first, it was just a casual thing. Just a trial. I never thought it would turn out like this.

I never thought I would destroy Ruka.
I never thought she would become a masochistic pet, shaking her legs obscenely and begging to be trained.