Protagonists in this stage: Xu Youchen (male), Xianghan (male), Zai Si (female), Yike (female)
The main plot of this stage: the eve of graduation. The four gathered to celebrate graduation. It raises many blind spots and doubts about the past and future. It is the doubts of the characters and also the reason for the story to continue.
Highlight of this stage: delicate description of emotions. Short but masterful.