The second part, your name is given by Makoto Shinkai. The story happened in a small mountain village outside the city. The hostess San Ye is a high school student. She was born into a witch family. Some recent events have puzzled her. I don't know when Sanye will become a high school student living in this city. This high school student has always dreamed of becoming a girl living in a small mountain village. The two of them exchanged bodies during the day and at night. In the constant communication of the body, the two also gradually developed subtle feelings.
When the boy went to look for the girl who exchanged bodies, he found that the place where the girl lived had become a ruin because of the arrival of the comet. They are not in the same space. Later, the two never exchanged bodies again. The boy began to lead an ordinary life. Occasionally, he will think of that girl. Surprisingly, one day they met. However, with the passage of time, the two changed so much that they didn't recognize her. They finally missed her.
The third part is Takahiro Omori's The Firefly Forest. In the forest where the little girl Ying was playing, she met a boy named Yin wearing a fox mask. They became good friends and agreed to meet each other every year. Over the years, Ying has grown into a girl, and Ying also has subtle feelings for silver. Since then, Ying has come to this forest every year to look for silver mines. Silver is a kind of spiritual substance, which can't touch human beings. Slowly, both of them fell in love with each other, but no one mentioned it. Yin invited Ying to a party in the forest. These two people seem to be dating. Good things are like a dream. However, the party soon ended. A human child accidentally touched the silver, and the disappeared silver lay in her arms. So I think Spirited Away is a classic anime movie.