Sacrificed from the Start, I Can Only Use My Little Sister's Body

A gentle breeze drifts by, bringing a message.

My name is Xu Yougao, though you can also call me Xu Yougao, since my younger sister’s surname is Xu. I don’t know why, but it feels like my mom in this life stabbed me in the back. She sacrificed me to my little sister.

What she doesn’t know is that I have a System. Even though I was sacrificed, I only lost my body, and I can still use my sister’s.

(My writing is terrible, so I just write whatever comes to mind.)