[#YouQuiz] Story of mother Ko Hyun-jung, revealed for the first time💬

Streaming on Tving: https://tving.onelink.me/xHqC/30a78d6f #YouQuizOnTheBlock #YouQuiz #YooJaeseok #JoSeho Every Wednesday at 8:45 PM on tvN! we're :DIGGLE family #StreamingOnTving