Lee Won-geun marked his return to acting after two years of serving in the military in the drama One The Woman.
Fans of the show were left in awe after a scene of the show when Lee spoke Vietnamese. During a recent photoshoot and interview for @star1 magazine, Lee was asked about his experience learning the language. "I personally found a Vietnamese tutor and learned it in advance, as I was worried about it. The director tried to lessen the pressure by joking that no one would know differently and to relax, but I really wanted to say the lines perfectly," he replied.