Eighteen years ago, only two children miraculously survived the collapse of the Hansung Apartment. One of these survivors, Park Taeyi, is now Korea's most famous and scandalous actress who only lives for the present. The other survivor, Jung Hawon, is a traumatized recluse afraid of the present. And after the two meet coincidentally on the way to Jeju Island, they find themselves constantly running into each other. But can these chance encounters pave a path for them to face the future together?