Candy Coated Nightmare

She's having a nightmare every day and night. Her nightmare keeps haunting her over the years. But in the middle of her nightmare, a boy showed up. She found her comfort in him. He's the peace of her nightmare. She feels as if the boy really exists. She feels as if her body is familiar with the scenarios of her nightmare. There is only one way to answer her questions. She needs to find the boy. But how can she find that boy? When she's busy fangirling a band called 'The Band'

Is the nightmare connected to her life?