After graduating from college, Xu Yi returned to Yuyang, a city full of memories. On his first day when he joined the Fourth Criminal Police Team, the boy he had been looking for suddenly appeared in front of him. After jointly solving one murder after another, Xu Yi knew that this man would never leave him like he did back then.
"I said, if one day you are willing to tell me what happened, I will spare no effort to help you."
"Expiration date is forever."
Purpose: Everyone deserves to be loved from the moment they are born.
