Chanel #1 Was adopted Gigi found a KKT sister to adopt her and was able to mantain a connection with her. Boone could also have been adopted. Gigi alwas knew Grace was the daughter of the KKT girl who said "waterfalls is my jam". Chanel #1 convinced Pete to help in the revenge plot because he was obssed with her. They have waited 20 years so they could take the revenge on the daughter of the Kappa sister who was responsible for Sophias death.