Natsume Yuujinchou: Itsuka Yuki no Hi ni
Natsume Yuujinchou OVA
Natsume's Book of Friends OVA
夏目友人帳 新作OVA いつかゆきのひに
During a winter walk, Natsume meets a snowman youkai who is searching for something she's lost and can't seem to recall and decides to help her despite not knowing what exactly she's looking for.