He is the "perfect shadow" carefully cultivated by the special high school. He lives in the sun as a military elite and is brothers with the webmaster Shen Fang. When the cold assassination command points to the only source of heat in life, Shadow is completely torn between loyalty and friendship. This is a huge gamble about identity and belief: when the puppet learns love and pain, should the knife in his hand pierce the heart of the empire, or the light that illuminates himself? Come from the darkness, go to the darkness, just to become a reverse sharp blade that stabs the old master.