Kim Taeyeon and Park Sooyoung who is known as Joy, has been friend ever since their childhood days. They grew up together and went to the same college. They are not the type of girls who's desperate for love so for 18 years in their life, they just focus on their studies. But one fine day, both of them finally fell in love with the 2 guys who are cute, playful yet handsome. -- Byun Baekhyun and Yook Sungjae, has been friend ever since