A Safe Journey with One Sword

One is a prodigal, wandering around the world, endangering the martial arts world; the other is a martial arts hero, with a far-reaching reputation, and encountering injustices on the road; a promise that has to be made, uncovering the dusty past, and the loneliness of the world... But we can only die together... Cannot coexist... The only thing I can do is to use this life to make a fulfillment...