Cheng Xi, a round-faced girl, has a sunny and handsome boy living in her heart - her male god, Zhu Ziyi, an artist who is almost unknown in the entertainment industry. For him, she mustered up the courage to do a series of things that were once beyond her reach. Through her efforts, she and him gradually changed from two non-intersecting parallel lines to two asymptotic lines, and finally turned into two intersecting lines.