"One man and one sword, blood madly devouring. Unnoticed, a white light flashed across Shi Feng's body, and he finally broke through the Martial King level, stepping into the One-star Martial King Realm—but the devouring did not stop.
A vast Blood Sea was fading under the frenzied devouring of Shi Feng and the Bloodthirsty Sword, as the Sacred Flame had said, the blood in this sea, after eons, had mostly dissipated its energy. The Sacred Flame, the Bloodthirsty Sword, and the Blood Yin Beast only devoured the useful essence within the blood.
When the Bloodthirsty Sword suddenly flashed a blood-red light and ascended from a Fourth-Grade Mystical Artifact to Fifth Grade, not much later, the devouring of the Sacred Flame, the Bloodthirsty Sword, and the Blood Yin Beast came to a halt.
The vast Blood Sea had been completely devoured of its energy by them and what remained was nothing more than some useless spent blood.