Villain: The Protagonist's Panicking Means I Did the Right Thing!

Xuan Yuanhan transmigrated into a fantasy world and became the emperor of the Divine Dragon Empire. Unfortunately, he only awakened the memories of his past life after the plot had already begun. As it turned out, he was the destined great villain in a power fantasy novel, fated to be killed by the destined protagonist. At the critical moment, he awakened a System that told him to “take advice” (do whatever he wanted). So Xuan Yuanhan decided to go all in and become even more outrageous. You say I shouldn’t steal the destined protagonist’s woman? Then I’ll make the destined protagonist guard my palace gates! You say I shouldn’t depose the empress? Then I’ll depose her! You say I shouldn’t put eunuchs in powerful positions? Then I’ll establish the Eastern and Western Depots! You say I should execute the rebellious great general? Then I’ll acquit him! One day, the demons from beyond the realms descended! Xuan Yuanhan: Is the destined protagonist over there? Is your mother a roasted chicken?