Episode Title:
Lonely Birthday.
Episode Description:
Kosaka has invited Miyuki Kashima, Masato, Muraki and everyone else to his winter home in the mountains. At the same time, Masato's sister Miyuki and her friends have also gone to the mountains for a winter vacation with their teacher Nakata, and Miyuki and Masato have no idea that the two houses are right next to each other.
