Kanon

Yuuichi Aizawa returns to the snowy town he last visited seven years earlier to live with his aunt Akiko and cousin Nayuki. The streets should be familiar, yet almost every memory of the place has vanished from his mind, leaving the people who remember him feeling like strangers.

As Yuuichi reconnects with girls whose lives seem strangely tied to his forgotten childhood, fragments of old promises begin to surface. Ayu's endless search, Makoto's mysterious attachment, Shiori's fragile health, Mai's nightly battles, and Nayuki's buried feelings gradually reveal that the town holds memories Yuuichi may have forgotten for a reason.