The ancient style martial arts 3D Chinese animation story tells of escort agency guard Qi Zhaotang who is entrusted to deliver the copper swallow master key to the Cangfeng Pavilion at He Pass before the Hour of the Rat, completing the mission of permanently sealing the pavilion. This escort journey is fraught with danger, as Shao Chengyan is obsessed with the famous sword Duanyue inside the pavilion, dispatching subordinates along the way to intercept and seize the key. Along the way, Qi Zhaotang meets contact Wen Shuyue, successively encountering tests and blockades, and facing the entanglement of old school grudges, he abides by the commission, trying his best not to draw his sword to fight and not winning by force. Passing through ferries and dangerous inns, he maneuvers among various parties, seeing through the predicament of everyone being trapped by old debts, kindness, and famous weapons.