The modern top killer "Lone Star" accidentally traveled to another world and became an abandoned general's concubine. In order to survive and pursue the truth about time travel, she was forced to disguise herself as a man, taking on the identity of her twin brother, and was involved in the bloodiest power whirlpool in the dynasty, but unexpectedly stirred up the general trend of the world.
This is not only a story about assassination and survival, but also a profound exploration of "who am I". The heroine dances on the tip of the knife, survives in lies, and finally completes her awakening and growth from a sharp "knife" to a "person" playing chess.