Song Chi and Xu Nian were originally the proctors in this "fun and casual" exam, but they were almost killed in a mission. They entered the exam room again not knowing each other and forgetting the past.
"Classmate, you look familiar. Have we met somewhere before?"
"I don't know"
"Oh, let's get to know each other. My name is Xu Nian. I wish for Xu and miss Nian. What about you?"
"Songchi,... The pool of the Wishing Pool"
Purpose: unity