Byeon Woo Seok had a “blink and you miss it” appearance in “Moon Lovers: Scarlet Heart Ryeo.” His character didn’t even have a name, and he was shown as the guy who cheats on IU’s Go ...

Simultaneously, IU has built a career as an actor. She played a modern woman transported back to the 10th century Goryeo dynasty in 2016’s historical romance drama Moon Lovers: Scarlet Heart ...