Exploring Kim You-jung’s Astonishing Martial Arts Skills: Every action scene is performed by Kim You-jung herself, without the need for a stunt double. Starting from scratch, her rigorous training at martial arts schools and one-on-one coaching sessions showcase her dedication and hard work, punch by punch, kick by kick. This not only highlights her innate athletic talent but also proves the immense effort behind her success. This aspect of Kim You-jung reveals her to be not just an actress who relies on her looks but a true artist who pours her heart and soul into her roles.