A Fake Prince from the Start? Then My Filial Devotion Is Going to Get Twisted

[Multiple Heroines + Invincible + Ruthless and Decisive + Anti-Trope + Smart Protagonist] In the Great Qian Dynasty, Li Changjin is the only prince. At eighteen, he learns the truth: he isn't a prince of Great Qian at all. He's merely a vessel for the true prince's bloodline, destined to absorb the tainted demonic energy from the Abyss in that bloodline through his own body. He won't live to see twenty. The Empress Dowager and the true prince have been plotting against him, treating him as a stepping stone? Overcome with grief and rage, Li Changjin looks at the Empress Dowager seated before him on her high throne, her figure alluring, her gaze dreamy. A daring idea suddenly takes shape in his mind... Li Changjin: “Empress Dowager, since we're not related by blood, don't blame me if my filial devotion turns into something else.” At the same time, the Great Villain System binds itself to him. When Li Changjin faces the true prince, he simply smiles. What? The true prince is a Child of Destiny, too? Even better! What this great villain loves most is tormenting Children of Destiny until they despair! From then on, Li Changjin toys with every Child of Destiny he encounters... Thousands of years later, Li Changjin can't help but marvel that the countless opportunities contributed by the Children of Destiny helped him reach the peak of the Great Dao so quickly. And behind him stands a host of peerless, heaven-blessed beauties, each one wholeheartedly devoted to following him...