The school class is taken on a ski trip, and the final nights exhibit is a couple's masquerade ski contest. Akako Koizumi aims to make Kaito her partner for the masquerade and even places a heart sticker on him trying to claim him as her's. However when Kaito learns that Aoko is planning on dressing up as her father and partnering with a man disguising himself as the Phantom Thief, he decides to take matters into his own hands to make sure he wins the competition and that Aoko is not left crashing in second place to Akako.