Yi Ren Zhi Xia: Xiu Tie Chong Xian

Nadutong assigns Zhang Chulan and Feng Baobao a special mission: escort the legendary sword Zhiwan to the border, fulfilling a decades-old agreement with Japan's Ishikawa family. Joined by unfamiliar teammates, they cross the brutal northern winter knowing that every stage of the journey could become an attempt to steal the blade.

A group of ninjas soon moves to seize the weapon, turning the snow-covered route into a chain of ambushes and pursuits. Between Zhang Chulan's suspicions and Feng Baobao's impossible-to-predict behavior, a simple delivery becomes a test of trust within the team—and of the secret that makes the sword worth so much blood.