Ye Qing, a modern repairman, accidentally falls into an ancient martial world. He has no money and can't even carry a bag of salt. To make ends meet, he repairs old lamps and sews on buttons, practices standing in the snow, and learns to catch blades by a furnace. The only thing he can rely on is the Heavenly Craftsman's Martial Vault in his mind, which lets him look back only on the traces of his own hard training.
He doesn't seek to make a name for himself overnight. He only wants to make every step count. From Old Ferry Street to Snow Pass, from Hundred Furnaces to Tide Grounds, he meets mentors, makes friends, and fights villains, while secretly searching for clues that might send him home. But he never forgets one thing: this body isn't his. Behind the door, a boatman with the same name is waiting to get his boat and his life back.
This is a grounded tale of growth in the world of martial arts. It isn't about crushing everyone with superior knowledge, but about how one man uses the most humble of skills to find his footing in the martial world, then return what he borrowed, cleanly and completely.