a high-definition realistic video of Rem, with her short, light blue hair styled with a side-swept fringe and a pink ribbon, floats serenely in an underwater world. She wears a flowing white dress that billows gracefully around her as if part of the ocean currents. Her sky-blue eyes reflect the glimmer of sunlight filtering through the water's surface above. Small schools of glowing fish circle around her, casting ethereal patterns on her skin. The camera starts with a shot of the vast underwater expanse, then transitions to focus on her peaceful face, surrounded by the tranquil beauty of the sea.