A boxer who was previously a genius, and a rich girl who has a serious illness. Despite appearing not to have any connection, they are similar. Nothing can melt their heart of ice. What is the sunlight that can melt their frozen heart? If the answer is love, is it too cliché? Tae Woong`s love melted the heart of the ice princess, Bo Ra. Although this winter will be very cold and scary, winter is not the end of the seasons, but the beginning of the hope for a greater love.

Kai and Gerda are very dear friends who have been living together since young. However, one wintry day, the Snow Queen appears stirring up snow and wind, and a sliver of mirror gets lodged into Kai's heart. Kai drives Gerda away in tears and the Snow Queen takes Kai away to her realm. The adults try to dissuade Gerda from pursuing Kai, saying that he is already dead. But determined to find Kai, Gerda set off on her own journey which is filled with trials and tribulations.