Sang Yan's college roommate likes Sang Zhi.Nicknamed Duan Laogou, he has a cold personality and is single-minded.He was born into a well-to-do family and originally lived a happy life, but fell into a trough after his father committed suicide after a hit-and-run accident.Dream of becoming a game designer.After graduation, I returned to Yihe to find a job, but I didn't often contact Sang Zhi. Later, I met Sang Zhi in Yihe and started falling in love.