Yu Xuan focused every strike toward the chest — the heart region of the Mad Killer. His golden eyes glowed as he activated [Immortal's Gaze], dissecting his opponent's body with supernatural clarity.
By now, the fight had lasted far too long.
Both of them should have been exhausted, yet neither showed signs of slowing.
Yu Xuan's case was unique: his cultivation technique gave him a terrifying recovery rate and bottomless stamina, while the Mad Killer's physique was built to endure like a beast forged for war.
Still, the sight inside the guardian's body puzzled him. The Mad Killer's heart was literally black, pumping black blood.
That made sense.
What didn't make sense was the aura. His slaughter intent radiated red, wild and blazing, in stark contrast to the darkness within.
'Strange… black within, red outside. Why?' Yu Xuan wondered, but curiosity would have to wait.
