Two straight lines that never intersect in the same plane are called parallel lines.
This is a story about parallel lines.
Sixteen-year-old Su Xingnian met her math teacher Wen Zhao. Short hair, white shirt, lectures quickly, doesn't like to laugh, but will give umbrellas to students on rainy days, and frown slightly when giving lectures. Those inadvertent tenderness make a girl's heart quietly come closer.
But closeness in youth is often accompanied by misunderstandings. A late explanation caused the two lines that were supposed to intersect to extend in opposite directions. In the days that followed, one locked himself in a high wall of silence, while the other stood outside the wall not knowing how to speak. Until another person appears. Wei Huaiwei is as gentle as the spring wind. She doesn't ask "what's wrong with you", she just stays with you; she doesn't force you to come out, she just waits. With her company, the little star who locked himself up finally learned to laugh again.
Parallel lines will not intersect.
But at least, they had been very close to each other.
Intention: The roads we have traveled, the people we have loved, and the injuries we have suffered will eventually turn into starlight, illuminating the way forward and warming those who come after us.