The best and most well-known swimmer in the country, Aerah, finds herself trapped in a life she no longer recognizes after a devastating tragedy. For her, everything was taken away from her as she developed her rare condition that pushes her away from the things she once loved. As she lives in despair, ready to give up on everything, a mysterious man comes on her way, changes her mind and offers a glimmer of hope and warmth. However, as they get closer, a dark and lifelong secret will be revealed that threatens to destroy everything. In a world where fate plays cruel games, can they still find the strength to defy the odds and hold on to each other? Or instead, will they forever ask themselves, "Why can't I?"