Jiang Yu, who suffers from depression, and Qi Chuan, who was born with irritability
They met during a certain class break when Jiang Yu accidentally bumped into Qi Chuan who was going to play basketball.
Qi Chuan fell in love with Jiang Yu at first sight.
Qi Chuan originally thought that they could maintain this happy relationship forever, but Qi's mother asked Qi Chuan to break up with Jiang Yu. Qi Chuan disagreed and was forced to go to S city.
Who knew that this journey would last for 3 years.
The night before Qi Chuan left, Jiang Yu found Qi Chuan
"Are we going to break up?"
"No, we will never break up."
"I'll wait for you."
Purpose: Mutual redemption