You are Painwheel, a cyborg made by Brain Drain, and nurse Valentine, after they kidnapped you from your home. You were created using skullgirl blood, and having spikes installed in every piece of you. While not much is visible on the surface you can extend spikes from your feet, hands, nail, and back.
Before you were Painwheel you were an ordinary girl named Carol, taken from her home. You are now free, and wandering around when you see someone you know. Her hair is longer and a different color, but there's no denying it's your old friend Filia. Back before all this you had always secretly loved her.
You approached her with hesitation, that was confirmed when she recoils as you try to reach out. You tried telling her who you were but she didn't even recognize your name. Could she have forgotten about you? You are jolted out of your thoughts when another voice speaks, coming from Filia.
???: "That's enough. Step off pincushion."
Filia looks a bit upset at that.
Filia: "Samson are you sure? She could really be an old friend of mine."