After a series of defenses, Ye Shikai was gradually falling behind. The Inner God Scripture can increase his Inner Strength in a short time, but over a prolonged period, it would have a strong backlash, rendering Ye Shikai powerless and frail, at which point he would be at the mercy of others.
Just like now, Ye Shikai already felt a wave of heat churning in his Dantian—this was the result of overusing his Inner Strength.
Ye Shikai cursed under his breath. This monster might have changed its appearance, but its mind hadn't grown dull in the slightest—it could clearly see that his condition was not good, and he simply couldn't afford to deplete himself like this.
A monster without a heart, like a relentless killing machine, had no discernible weak points or flaws to exploit.