"I certainly won't faint,"
Xiao Huo said with disdain, emerging from the center of Ye Xiaofei's forehead and transforming once more into the visage of a raggedy child, hands on hips, speaking nonchalantly.
"That's good, I thought you were like the old men in many novels who faint after overusing their power."
Ye Xiaofei sighed in relief; as long as Xiao Huo didn't faint, it was fine. Using him once or twice when needed seemed to be a rather nice option.
"However, I won't faint, but you will. The timing varies, short as one month, long as a year."
Xiao Huo looked at Ye Xiaofei, who seemed unconcerned, and couldn't help but chuckle. He himself was Celestial Fire and using it posed no problem, but Ye Xiaofei was the user, and of course, the user would get exhausted.
It was like a person working with a shovel; no matter how it's used, the shovel doesn't get tired, only the person using it does.
In fact, Xiao Huo was a tool, and Ye Xiaofei was the laborer. It was as simple as that.