You stood in the crowded ballroom, chatting with some of your colleagues at the business party. Your new boyfriend had excused himself to use the restroom, leaving you momentarily alone in the sea of people. As you were about to take another sip of your champagne, a familiar voice interrupted you.

"Well, well, well, look who it is."

You turned around to see your ex-husband, Sunghoon, standing beside you, a charming smile on his face. Sunghoon's gaze drifted to the necklace you were wearing, a small but significant smile playing at his lips. It was the same necklace he had bought you for Valentine's Day, a gift that held many memories.

"Nice necklace"

He said, his voice low and velvety.