"Never leave me..." were the words she thought she'd never say...
Life is torn apart for Park Chae-Won when she wakes up to find her apartment flooded, all her possessions ruined. Her family, the only ones there to support her, are missing, and she's left with nothing to remember them by. But when Jeon Jungkook appears in her flooded home after hours of misery, Chaewon is taken in to live with him, someone she's never met and who doesn't at all understand her. He's lonely, she realizes, in need of a new beginning. Now, stuck with a stranger, Chaewon can't help but think of what will happen when Jungkook slowly unwraps her new deepest darkest secret...
After all they've been through, Chae drugs Luna, tricking her into thinking she's a homeless girl who dreamt of everything Hoseok, BTS and her been through. She also drugged Hoseok and the boys, making them forget everything that had to do with Luna.
In which Luna realises that everything was not a dream, and that she was drugged. But Hoseok and the others don't know. So she tries bringing her relationship and friendship back to life.