"I miss you...I miss you so much and it hurts." "I'm sorry..." --------- This is a y/n story where she's left her best friends, BTS, 7 years ago only to run into them 7 years later at Jeju. She misses them so much but unknown to her, they miss her more. They wrote a song especially because of her, it even became a hit called 'Spring Day'. But even though they see each other again, will they forgive her easily for leaving in the first place? Or will they ignore her and try to forget her for the rest of their lives and live in the winter?