"I can't see the future, so I have no future."
Tang Yu received a special task: to protect a stranger. This task made him confused and dissatisfied, and the people being protected on the other side were also full of doubts and doubts about this decision.
Two people who don't know each other get to know each other because of their identity. Maybe it was destined from the beginning.
Concept: People are full of doubts about the world