Qu Zhengyan finally found his childhood best friend, Du Yongjin, after 9 years and 7 months. Their friendship ended on a bad note all those years ago and he was ready for the worst outcome. However, his best friend now known as He Ziming, was no longer the same as before. He Ziming was so serene that Qu Zhengyan was afraid he might disappear one day. To make it simple; it doesn't matter whether he was there or not.

We had glimpses of flashbacks that drove them apart. Du Yongjin was raised to be a carefree child by his grandmother. So carefree that he never places anyone above him. And Qu Zhengyan was his loyal sidekick. Qu Zhengyan did his best to curb his boisterous best friend and on that fateful day, he decided to give both of them some time apart. If only he knew that it would take him 9 years and 7 months to reconcile. There were multiple layers of walls erected by He Ziming to protect himself. Qu Zhengyan initially wanted time to heal their pain only to know that by taking his sweet time, he might not be able to enter He Ziming's space at all.

Another character in the story was Wang Bailu. She was their classmate who had a somewhat good friendship with Qu Zhengyan as both of them were high achievers. Du Yongjin schemes something against her and that is one of the reasons for his falling out with Qu Zhengyan. Du Yongjin got his karma and yet in my opinion it was harsher compared to what he did to Wang Bailu. Wang Bailu had family support, help from a psychiatrist, and Qu Zhengyan was also there for her. It did not lessen her pain and Du Yongjin shouldn't have done what he did but, there was no one with Du Yongjin when he got his karma. And I was sad for him. Imagine living your life like you did not exist.