Ordinary girl Xia Mi accidentally passed into the key No. 1 middle school in the high school entrance examination. By chance, she met the sunny boy Zhang Ruoxi, the calm and rational academic tyrant Fan Yuan, and the outstanding top student Lin Ruolei. Four young people with different personalities and a group of people from TiannanhaiThe classmates from Bei collided and created an inspirational and funny campus symphony of youth.They gain and grow from the intertwining of friendship, family affection and hazy emotions. They firm up their dreams and move forward courageously, and jointly weave a beautiful youth memorial book.