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.