Help! The Empress Looks Exactly Like My Goddess from the Modern World

[Male Protagonist Transmigrates into a Book + Devoted Love + System + Hegemony] When Yang Jing wakes up, he discovers that he has transmigrated into a book! He never thought he'd ride the tide of the times and get to experience the thrill of entering a novel himself! Unfortunately, not only is his new identity a useless emperor, he's also a disposable supporting character! Even the book's title says it all: How the Dog Emperor Destroys His Own Empire! In the story, Emperor Yang Jing not only believes slander and brings ruin upon the loyal empress's family, he also dotes exclusively on Dou Xiaohuan, the bewitching consort who brings disaster to the realm. In the end, he suffers a crushing defeat! His empire is overthrown, his wife and biological son are killed, and he pampers an illegitimate child beyond reason. Only when he dies does he realize the whole thing was a scheme by the Noble Consort and his dear younger brother. Luckily, a modern-day hoodlum named Yang Jing, with the same name as the emperor, transmigrates into the book. He eventually discovers that the empress looks exactly like the woman he once loved from afar in his original world!