Beginning with Sacrifices and Devouring Yourself into a God

[Successfully swallowed an E-level monster and obtained two points of spiritual essence. [Successfully swallowed a descendant of the evil god and unlocked the skill 'Infinite Regeneration'. [It failed to swallow the old stumps, and the pollution value increased significantly, causing irreversible distortion. "Huh?! I have three heads and six arms!" … The holy mist spewed and the steam roared. In 1855 AD, Su Mu traveled to Ultramundk, where the gods favored him. After traveling through time, Su Mu was respected by the cultists as the "Destined One" and became their sacrifice to please the gods. But he should have fallen into madness and headed toward death, but miraculously survived the ceremony. And he got a strange book called "The Secret Book of the Abyss" and an extraordinary way called the "Key to the Door". In order to survive in this twisted world, Su Mu relied on the "Secret Book of the Abyss" to continuously devour monsters to gain stronger power. Raise your extraordinary level with the help of a mysterious man. 'Observer', 'Time Traveler', 'Dimension Walker'… Su Mu got closer step by step until he became an old man! Only then did Su Mu finally understand that all the gifts from his destiny had already been marked with prices secretly.