I Reincarnated as the Great Villain, and the Fallen Empress Put Her Hair Up

[Transmigrate into a book + System + villain's comeback + three thousand beauties + power struggles + ruthless protagonist. He strikes back from the start, with nonstop action and no getting pushed around!] Yang Chen, a wage slave in his previous life, transmigrated into a book as a useless prince doomed to die as cannon fodder. He was ambushed from the start, awakened the Villain System, and struck back by killing the princess of a fallen kingdom. While Ye Fan, the original protagonist, was still grinding monsters in the beginner's village, Yang Chen had already begun plotting to conquer the world and seize its fortune. If he was destined to be a villain, then he'd become the ultimate Big Boss who made the hero and heroine kneel! The emperor is a man pretending to be a woman? Excellent. Fallen Empress, get on your knees and neatly pin up your hair!