What if one day you wake up to find yourself erased from everyone's memories and invisible to everyone around you? Except one. She remembers you. And she is one of the biggest fans of a music group you are a part of. Meet Park Jimin a member of the popular boy group called BTS (Bangtan Boys or Bulletproof Boys for long) and Ally one of the many hardcore BTS fans out there. Join Jimin and Ally as they try to figure out the reason behind Jimin's invisibility .