Beast Control: Pit the System First at the Beginning

[Villain Protagonist] [Mildly Funny] [Decisive Killing] It took 12 years for the system to arrive? Is this express delivered by a snail? ! Gu Feng, an ordinary "traveler". After 12 years of struggling in the world of beast control, I finally got the long-overdue "traveler gift package" - the system! However, as the ultimate villain (and self-proclaimed), he decided to teach this inexperienced system a lesson. Other people's protagonists are busy saving the world, while Gu Feng is busy... Destroying the world? System: Wait! Shouldn't I be cultivating a savior?