Kim Ji-won's playful, spicy older sister vibe bursts out in front of Kim Woo-seok

It’s funny to hear that Kim Ji-won playfully showed off her "older sister" side to Kim Woo-seok, her co-star in 'Doctor X'. Unlike the calm image she usually portrays in her works, the fact that she treated him so comfortably on set that she even told him, "Hey, don't mess around," reveals a different side of their relationship. Since this anecdote gives us insight into the actual atmosphere on set, it will be fun to compare it with the scenes in the drama.