C1639 Bone Method

This was the Fire Escape Technique from the Ninjutsu. Using things like smoke bombs to confuse the enemy for the time being, they could then take the chance to escape or counterattack the enemy.

After his defeat, Xi Tong decisively used the fire escape technique. The smoke from the explosion was very thick and even several times thicker than the fog, and it would not dissipate for a long time