During a campus singing competition in the first year of high school, Su Wan fell in love with Lin Fei, who was both a host and a singer. Lin Fei is a heartthrob, and Su Wan can get information about him from many classmates. Fortunately, she and Lin Fei are in the next class. The reason why hazy love is unforgettable is that there are innocent efforts and less regretful regrets. Everything came and ended so quickly, as if it only belonged to the age of seventeen.