This pain was very weak, even weaker than being lightly stabbed by a needle.
Under normal circumstances, not to mention a Star-Grade Martial Artist like Quinn, even ordinary people would not take this pain seriously. However, the place where this trace of pain came from was the thing he cared about the most in his body—a main meridian.
Although the pain was very weak, Quinn knew very well that this trace of pain meant that his meridians had already begun to warn him. The burden of using the Red Lotus Raging Flame Divine Technique on his meridians had already exceeded the level of safety.
If he ignored this "warning" and insisted on continuing to use the Red Lotus Raging Flame Divine Technique, the burden on his meridians would become heavier and heavier, and the degree of damage would become deeper and deeper. In the end, it might leave behind irreparable damage.