Behind

When the person noticed that Shen Qing, who never cared much for her appearance, was wearing an unusual earring, they asked her, "What a distinctive earring. Was it custom-made?"

Shen Qing paused slightly and touched the earring. Her eyes fixed intently on the person as she replied, "Yes, it was made just for me."

"It's so big! Is there something inside it?"

She smiled, her eyes curving. "This? It contains my lover's ashes."

Theme: I looked back, and you were behind me. I turned around, but you were gone.