Y/n is the childhood best friend of Iszuku Midoriya and Katsuki Bakugo. Her parents were abusive, towards her and her brother. One night when she was 8, her brother helped her leave. He took her far away, away from her parents. He took her to stay with a girl. The girl trained her to become a killer. One day when she was training she met a little girl that changed her life. She was hired to protect the students from UA high. Class 1-A. Of course she was reunited with her childhood best friends. She has to keep her identity a secret. Let's begin. Warning: This book contains explicit scenes, abuse, kidnapping, explicit language, and explicit violence.