Continuity
After the heavy rainstorm, Jiro folds the umbrella that he and Nahoko walked under, but the umbrella shows no sign of being wet once the sun shines and Nahoko's father appears.
As Nahoko's train from the sanatorium pulls into the station, a conductor with a light salutes the train driver as it pulls in next to him on track 2. In the next shot, the train is just pulling in next to the conductor on track 2 and the conductor salutes the driver again.
