Meet the main character

When the new girl (Choi Noah Mi-Sun Rodriguez) moves back to South Korea after being gone for 8 years she has been through a lot. She now has to live with her childhood best friend (Kim Taehyung) while her mom is away with business. She has so many secrets even she is having a hard time keeping. But there is one problem Noah isn't the friendliest person. What will happen while she is in Korea?