[UPDATE] [📊] #IU and #ByeonWooSeok “L.O.V.E Challenge” has Surpassed 1.1M likes and 12.1M views on IG MBC DRAMA Official Page! This proves their Insane and Natural Chemistry,loved by many People and Watchers👑. 🔗 #PerfectCrown #21세기대군부인 #아이유