Smile my heart

A character descends a staircase, followed by a close-up of a distressed girl and a boy, then a girl and boy sitting silently on a train, a glowing angelic girl with white wings, two hands reaching toward each other against a sunset, and finally a close-up of the angelic girl's face. The sequence takes place in a series of indoor and outdoor settings, including a staircase, a train, and a dark stage-like environment.