an illusion

A silhouette of a person stands within a metal framework against a warm, glowing sky, then the scene cuts to a wide shot of a lone figure on a platform overlooking a vast, cloud-filled expanse. The sequence continues with a close-up of a girl with dark hair and a headband, her expression somber as bubbles float around her, followed by a close-up of a blue eye reflecting light. The final shot shows a boy in swim trunks standing in a bright, blue, water-like environment, then cuts to a side profile of a boy with dark hair in a school uniform, looking forward against a blue sky.