Shen Zhaoyun was originally the son of a lonely minister imprisoned in the mad king's palace. He was tortured but had a spark in his heart. Ji Suihan was a hidden blade that infiltrated the enemy country. He was ordered to assassinate but was shaken by his words "Are you afraid too?" In the bloody night. When the mad king burned his palace and committed suicide, the world was in chaos. Shen Zhaoyun walked out of the ruins wearing burnt clothes. Ji Suihan knelt in front of him with his sword in hand. From then on, there were no masters or servants, only a common master and the blade. They used blood as a contract, power as a chess piece, and lies to weave the warp and weft of the new dynasty - a world-weary man became the common leader of the world, and an assassin was willing to rule the world for him.