Sada Kim was born in the California area of US and all she knows is that she's been living with her grandmother all her life, but knows her parents and brothers have been living in South Korea this entire time. Her mother Key is a famous singer and model. Her dad Jonghyun is also a famous and used to be in a band with his wife. Kai/Jongin, G-Dragon/Jiyong, Taemin, Taehyung, and Bobby/Jiwon are her brothers. She's met them all but only when they visit her. She was finally able to live with her family when she turned 16. Now it's her turn to realize that love, relationships, and family are more important than ever. She faces the hard life of being an idol's daughter, sister, and friend.