Kris left EXO without saying a word. The other members felt betrayed as their own leader left them. Kris had promised to stay together but he broke his promise. No one knew the reason of his departure except for himself and of course, God. Seconds, minutes, hours and years had passed and they all lost contact with Kris. No one ever heard about him again after the incident. Not long after that, Amber also left the company and f(x) was disbanded. Only Victoria and Krystal remained there and became solo artists. The other left to company and became a normal citizens.

14 years had passed and EXO already became senior group in SM Entertainment. One day, the company held an audition in Guangzhou. Chen, Tao, Lay, Victoria and Zhoumi became the judges. A 12-year-old-boy joined the audition. When the boy entered the audition room, Chen, Tao and Lay were shocked as the boy looked familiar to them. Who was the boy actually? Was he someone that they knew in the past? Or maybe not?