A harmless camping trip. A group of eight. Blinding lights. Incoherent screams. One missing. One dead. It's all over though...right? Every person receives a special power when they turn 20. Be it being freakishly strong or as simple as being omnilingual. Selected students of the topmost elite school in the capital of Seoul, Juyeon High, receive a golden envelope on their doorstep. A scavenger hunt. No name, just the address engraved on the rough black paper. Y/n had no intention of going until she read the bottom left side of the invitation, as her skin went white as a sheet. "Moonchild". It can't be. Yoongi or Hobi are just messing with me. When Y/n and the surviving 6 members reunite after 7 years, it feels like the world has come to a halt. And as they embark on the hunt, the seemingly random locations and clues begin to feel familiar. Clues and hints all pointed to BTS and Y/n's memories. A ring she bought him. A song he loved. Their anniversary. The 7 have only one question...who is behind this?