The fire just now did not come from nowhere; it was precisely the work of Chu Fei.
Karma fire, acquired as an innate Soul Skill, could ignite the karma within a target's body. This fire born of karma could not be extinguished; one could only rely on one's own Soul Power and physical body to endure it hard.
If one could hold out until the karma finished burning, one would survive; if one could not last until the karma finished burning, one would simply turn to ashes.
Chapter 19