Bird's Song

In a city setting, a boy stumbles upon a new path on his way home. Rain forces him to seek shelter, where he meets a girl and falls in love. She gives him a feather, a symbol of their connection, and promises they will meet again if he always carries it. He returns home, following the path, but the next day, it's gone. Years pass, and he forgets the girl. Fifty years later, he revisits the city, now older, and experiences a dream of the girl. Throughout the decades, he has faithfully kept the feather, a testament to a love that time and memory have tried to erase. The anime is the work of Yoshitaka Amano.