Peerless

In the third year of the Sui Dynasty, the emperor Yan Jian established Jiejianfu, a spy agency to support his conquests. On a snowy night, the tribute caravan from the Yutian kingdom was robbed and slaughtered. On order of the Emperor, Feng Xiao, the second-in-command at Jiejianfu, was sent to investigate. In Liugong Town, he ran into Cui Buqu, an agent from Zuoyueju, there on a mission of his own. The two prideful agents didn't get along at first, but as they fought each other in a battle of wits, they began to realize that their missions had a common enemy lurking in the shadows. When they finally decided to cooperate, an enormous organization called Yunhai Shisanlou began to emerge… (Source: Bilibili, translated)

On the Third-Year of Kaihuang, as the Great Sui unfolds its curtains to welcome the glorious Tang Dynasty in succession to the Northern Dynasty, Yang Jian established a secret agency, the Jiejian Bureau in preparation to unify the world. In a stormy night filled with snow, a convoy of tribute sent by the Kingdom of Khotan was ambushed and massacred with not a living soul left behind. The Second Commander of the Jiejian Bureau, Feng Xiao came forth to investigate the case under Imperial Orders. A gathering of storms would soon take place in a little city which sat on the frontier, called the City of Six Crafts, where all the top martial powers across the lands would meet. The ever successful Second Commander Feng meets a dead end when he ran into a Master Daoist with ailing health. All would be unknown if they had never crossed paths, but once their paths crossed, Second Commander Feng realized this ailing man had more secrets than himself.