In an abandoned building, a woman kneels on the floor, staring at a small box in front of her. Meanwhile, a man floats in a large lake, his eyes closed. Suddenly, he opens his eyes, staring up at the sky. He stands up in the water, aware of his vast, empty surroundings. Picking up the box, the woman gently takes out a necklace with a ring attached to it. As the man climbs out of the water, he touches his own necklace, looking at the ring. In the past, the man and woman embrace, holding each other closely. Both are wearing necklaces with rings attached.