Xuanhuan: Why Did I Transmigrate Here as a Villain?

Ye Buhui opens his eyes and finds himself in a fantasy world, where his status is ridiculously impressive. The lower realm, the upper realm, the heavens, the myriad worlds, the Hongmeng cosmos, the three thousand great worlds, the immortal domains: every kind of world is here. The System's voice rings out in his mind. [Host, I'm here.] Transmigrating with a System means he's definitely the protagonist, right? Just as Ye Buhui loses himself in the protagonist's halo, the System can't help but say, [Host, there's one small difference between you and the protagonist.] What's different? [You're the villain.]