Cheong Ah’s friend Baek Rim asks her to fill in for him on a part-time job. She goes to the park, dressed as Mr. Lightning, to hand out flyers. Meanwhile, Jun Hwi, who now works at Inter Market’s Sports Marketing Department, is at the same park for a promotional event. Jun Hwi mistakes Cheong Ah as someone his team hired for the event. Finally, Seol Ah gets shocking news while visiting the hospital.