Rachel

Rachel Liu is the youngest of the 3rd Gen Garteck children, and the only child who took her birth surname.

Biography
Rachel grew up with her brothers Matteo and Antonio, on the second floor of the Garteck House. She later noticed that there were more kids on the ground floor, and even snuck into the basement at 3 in the morning to find more. After discovering she has invisibility, she regularly snuck out the house and was the first person to find out about the friendship of Chase and Meteora. She started spying on them because she was very interested in their relationship. Chase eventually found out, except he didn't know she was his sister. Rachel told him the story. They promised each other they wouldn't tell anyone about the relationship or the story.