My name is Rika. In the mysterious laboratory, I feel small and weak when I see the muscular and augmented men that I have to fight alone with my katana. Nevertheless, I mustn’t give up. It’s for my survival. I must understand what’s happening to me, find the way out of this lab, and go home. I let the blade sing with my blows and I defeat all my enemies. I discover that my body has been subject to experiments to turn me into a killing machine, but the research has been interrupted, as I was able to free myself from the cylinder that was holding me prisoner. My survival is not over yet, as I still have to find my way out. But I know I’ll succeed.