Stranded on an uncharted island with BTS after a catastrophic shipwreck, solo K-pop sensation Y/N is forced to face her darkest secret. Cut off from the modern world and her vital medication, her severe, hidden seizure disorder is violently exposed during a life-threatening episode. Stripped of her idol armor and her painful past of childhood abandonment laid bare, she expects rejection—but finds an unbreakable found family instead. As the years pass and rescue becomes a distant memory, Y/N and Kim Taehyung (V) navigate the raw realities of survival, turning mutual vulnerability into a deep, enduring love.