A winged princess named Kanna once fell in love with a soldier and dreamed of seeing the wider world, only to be sealed away in the sky by a curse with that wish still unfulfilled. Centuries later, Yukito, a descendant of that soldier, arrives in a quiet town just before its summer festival and meets Misuzu, an unusual girl who reminds him of what his mother once told him about finding the winged girl's reincarnation. As Yukito grows closer to Misuzu, the shape of the old curse starts to resurface around them. This film retells Air's story as a single feature.