A girl named Lee Chanyeon and a boy named Jung DaeHyun, they grew up together in Busan, South Korea. But Chanyeon had to move to the U.S when she was 16, they both were sad about it and since Chanyeon was leaving, a different girl named Min had a crush on DaeHyun ever since kindergarden. She decides to make her move on DaeHyun, trying to get him to like her. Later on, while Chanyeon is in the U.S she starts her first day of school. Once she was introduced to the class another guy saw her and lays his eyes on her. His name is Jeon Jung Kook he's the most popular and hottest guy in he school, and almost every girl in the school likes him. Soon, he starts to talk to her and tries to get her to fall for her. A year later, they became best friends and Jung Kook doesn't tell her that he loves her. But the day that he does tell her was the day she got into a car accident and goes blind. She also doesn't know DaeHyun is in town and that she has a friend who likes her.