Release Date : 2015
Genre : Drama , Sci-Fi , Mystery , Thriller
No. of episodes : 8
Description : It's Christmas time again, and Kyouka invites everyone in the class to her family's grand Christmas party. Keiichi tells Kyouka to invite Kosuda over as well, much to her shock. Yamada has no interest in it at first, but gets lured in because of this "Secret... .