Eastern Wasteland Blood Spring, also known as the Boundless Blood Sea.
The Boundless Blood Sea lay deep beneath the endless Eastern Wasteland. It was a death zone for all living beings, and one of the most terrifying forbidden lands in the Purple Yin Realm.
Legend had it that this blood spring was a crucial vein through which the world's Killing Intent flowed. It was where the world's stagnant and foul qi accumulated. Vile fiends and ghosts often bred within it, and whenever a great demon was born there, it would bring calamity upon the world.
Hundreds of thousands of years ago, the Purple Yin Realm had produced an unparalleled Dao Lord named Daoist Cihang. His cultivation had reached the very threshold of creation, and he had wished to purify the blood spring and ascend to immortality through merit.
Back then, Daoist Cihang took command of the Eastern Wasteland Blood Spring and made a grand vow: as long as the blood spring remained uncleansed, he would not become an immortal. Blessed by the will of heaven and earth, he attained a Dao Fruit that came close to immortality.
Thereafter, Daoist Cihang spent day and night using supreme divine power, seeking to completely refine the karmic hindrances within the blood spring and purify it into a state of utmost clarity and purity.
Yet the blood spring had formed from the gathering of the world's foul qi. So long as the heaven and earth of the Purple Yin Realm existed, so long as the distracting thoughts of all living beings remained, foul qi would exist forever. Completely purifying it was almost impossible.
Daoist Cihang sat in withered meditation for tens of thousands of years, attempting to deliver the blood spring through his great divine power. Yet the foul qi of heaven and earth