Cassandra Forbes is the sister of Caroline Forbes and was the fiancé of Niklaus Mikaelson until he cheated on her with Hayley Marschall. A few days later, Klaus left town and left a broken Cassandra. After 17 years the Mikaelson's come back to enroll Hope Mikaelson and her family at the Salvatore School. What happens if the Mikaelson's not only see Cassandra again, but also other acquaintances? Legacies (Season 1- ?)