Everything seemed peaceful... only until a childhood friend of Seung-Suh came along and crashed his birthday party! Mi-Ha finds out that Seung-Suh dropped out school because of this friend--Eun-Yang. After that incident, they have never met till this day. And suddenly, Eun-Yang gives Seung-Suh an ultimatum! But somehow, it became a wager between Eun-Yang and Mi-Ha. Will she be able to take this?! Bring it on!