Nekogami Yaoyorozu OVA

Yuzu suggests to partake in flower viewing (hanami), so Gonta, who still has a crush on Yuzu, vows to find the most superb spot for cherry blossom watching. But where is he to find an empty place on such a nice Sunday? Shirasaki Hasumi remembers a blooming cherry tree in the yard of an abandoned hospital... if only that tree was not possessed by mischievous ghost-girl.