Ji Yichuan coughed, his face ashen. Seeing the worried look on his son's face, he couldn't help but laugh. "Previously, I used multiple forbidden techniques. My Zifu has been twisting and contorting, and is on the verge of collapse. Thus, my body has suddenly grown much weaker."
"Used multiple forbidden techniques?" Ning was astonished. "Father, then, you…""Hahaha." Yichuan laughed jubilantly as he stroked Ning's head. "This battle was the last battle I would ever fight. Afterwards, I will become a useless cripple. Naturally, I had to use as many forbidden techniques as I could."
Ning's face changed. Forbidden techniques were enormously harmful to the body; they relied on sacrificing the body's future longevity, then using that to reach a level of power beyond that which was normally possible.