Season 0 · 3 episodes
E1
Side Story For Archive
When Kanade assumes Yukino is going out with Sakuya, she starts to distance herself from their usual closeness.
E2
EX01 - Forecast of the Future
Kanade and Yukino move into their dorm room in Tokyo, sending photos back to their sister, Shizuku.
E3
EX02 - Theory of Happiness Sharing
As the snow falls, Sakuya invites Yukino, Kanade and Shizuku to a swimming pool before it is opened to the public.