My Life as a Clone

I AM NOT HERMy name is Willa. I don't remember much beyond my name. My parents are complete strangers. Every day I wake up and pretend I'm their seventeen-year-old daughter, but this is a lie. So who am I? I AM A CLONEI am a clone of a dead girl. It's the only explanation that works. I was birthed in a laboratory and then embedded in this family. But something went wrong. I should have memories, but other than a few tantalizing fragments, I know next to nothing. I WILL FIND MY PURPOSEOne thing I do know is that I was put here for a reason.
Buried in my subconscious is the certainty that I have a mission, I don't have much time to complete it, and something terrible is going to happen if I fail. I WILL SAVE A LIFEFor now, my task is clear. Figure out where I came from and why I'm here. I'm not alone in this journey. I have a dog named Rin, who was placed here with me for some strange reason. He is a central part of all this and holds the key to finding my purpose.
I also met a boy, Derek, who seems to know more about what's going on inside me than I do. With their help, I will find my answers and do what I was sent here to do. Because if I don't, people are going to die and one of them will be me