With My Background, You Want Me to Be the Villain and Steal the Heroine?

[Genius reborn from birth + multiple heroines + invincible background + unstoppable power fantasy] Gu Changyuan is born into the Immortal Realm's eternal-life imperial clan as its holy son. He then studies under a beautiful Daoist Venerable, one of the Six Sages, who is thirty thousand years older than him. Yun Qingyue: "If you don't go now, I'll make you cultivate in seclusion with me for ten thousand years!" Gu Changyuan: "You've told me the reward. What about the punishment?" Mo Li, with a pair of fluffy black cat ears on her head: "Master, Momo's hungry~" [The lie flat System has officially upgraded to System 2.0, the Villain Comeback System. Cut in and claim the lie-flat rewards in two easy steps. Go steal the heroine's opportunities!] Gu Changyuan: "Damn System, don't mess with my Dao heart of lying flat! What? You can even devour Systems?" Traits, fishing, extortion, sign-in, rebates, family, sect-building, more children, more blessings, proficiency, simulations... Hand them all over! Enchantresses, witches, saintesses, female emperors, senior sisters, Cao thieves... Gu Changyuan: "This is the life!" Yun Zhiyi: "Son, I've found you another wonderful big sister!" Gu Changyuan: "Mom, why do I have so many stepsisters?" Yun Zhiyi: "Well, when there's work, big sisters do it, and when there's nothing to do..." Gu Changyuan's still-brief life is far too eventful. "Help! The Sage Beats His Disciples Every Day!" "What Should I Do About My Overprotective Senior Sister?" "You Want to Talk Background? The Gu Family Is Mine to Command!" "Second Senior Sister, Men and Women Should Keep Their Distance!" "Third Senior Sister, Stop Getting Me into Trouble!"