Introduction to the work: The price of He Qichi's use of secret techniques to save Ye Jinghan was the complete annihilation of his own "existence". No one can recognize his face, feel his warmth, or remember his name. He was willing to become the nameless shadow behind Ye Jinghan, wiping swords, cooking medicine, blocking knives, and warming beds, guarding the unrecognizable days and nights. Until the night of the palace coup, Ye Jinghan slapped the invisible man against the wall, with the sharp blade pointed directly at his heart: "Who is pretending to be a ghost?" When the cold blade penetrated into the chest, He Qichi looked at the complete stranger in the other person's eyes, and suddenly thought - if he never existed, who was the subtle trace that Ye Jinghan had sensed in the past three years? And whose name is buried under the tomb erected for him?
Purpose: To explore the meaning of existence and the proof of love. Even if it is forgotten by the whole world, the dedication and emotion once were still true.