Libby Erika Jonas. The nine year old sister of Kevin, Joe, and Nick Jonas. One day they were out when they get the call that their parents and Frankie, their younger/older brother, has died. Libby goes through a lot since Frankie was her older twin brother. She has no friends at school so Frankie was her only friend. Once this death happens, Kevin, Joe, and Nick, have to work together to raise Libby them now being her legal guardians. It's a tough job especially when she stops talking. But join them on their ride of life raising Libby and trying to maintain their career of being a famous boy band.