Xia Xue and He Ling, a good girl and a bad girl, met in the abandoned dormitory 211. From then on, their lives were closely linked. In the days of separation, they experienced witnessing death, betrayal of lovers, disillusionment of ideals, and changes in the workplace... Completely different life experiences have changed them who were once dependent on each other. Can they meet again in a strange city? Can you find the true love in your heart? Can the ideal be realized? Once the lives that cannot intersect like parallel lines overlap, what kind of story will be deduced?
This is a story about ideals, growth, youth, friendship and love.