Yotsunoha [OVA]

• Based on the game by Haikuo-Soft.
  
  A story about the reunion of four childhood friends, Yuzuki, Matsuri, Nono and Makoto, in their deserted old school campus, Mochitsuki Academy. Three years ago, they buried a time capsule under a tree in the school yard and made a promise. A promise to meet again after exactly three years from that day. And that fateful day has finally arrived.