One after another, six illustrious gangs were hit hard, and no one knew why, just like no one could find the person who did it. Mystery, the world that had just calmed down for a while is now unstable again, all because of this mystery.
The Ruthless Sword - that's the man. Although no one has seen him take action, it can still be seen from the charred corpse that the person who did it is a master of swordsmanship, and all swords are killing moves, and all swords are ruthless.
Conception: