Q: What is Shadow Guard?
Answer: Tools.
The shadow guard can work on walls and lift tiles, do odd jobs in the kitchen, be proficient in pharmacology, or have great literary talent...
During the day, he can stand in front of everyone as his master's personal bodyguard, and at night, he can fly over the walls and secretly visit the target of his mission.
The general had such a shadow guard, who accompanied him on expeditions and returned to the capital. They grew up with him and went to the palace with him after they formed a contract.
General: Not a tool, but a brother
King Xian: General, what about me? Brother Qi?
General (embarrassed): You are a tool!
Concept: The story of the Shadow Guards