Wealthy teenage girl from Los Angeles is sent to a strict boarding school in Seoul to clean up her act. She meets a boy who turns her world upside down.
Maria moves to Illsan from America, to study as an exchange student in a special music program made at SJA music institute in seoul. She has moved in with a loving family and doesn't know that their son is in a famous idol group called BTS, and then her whole life changes as she decides she wants to live in seoul.