Evolution Starts from Becoming the Queen's Beast Pet

When he woke up, Lin Yan turned into a big white snake. To be precise, he transformed into one of the clones of a certain god, and was accidentally bound to the Devouring Evolution System. In order to avoid being obliterated by other clones, During the day, he and the Empress fought side by side regardless of life and death, but at night he would swallow the pill prepared by the Empress for him... This book is also called: "I am obsessed with evil and rely on the empress to achieve enlightenment and immortality"