Weirdness Comes to the World, My Methods Are a Hundred Million Cruel

(No heroine + decisive killing + time travel + no system) "Hey, have you heard? The best newcomer selected by the Zhenbei City Lingwu Brigade this time?" "Are you talking about that violent maniac, the pervert who can't sleep until he solves three weird beasts a day?" "Yes, yes, yes, I also heard that his fighting style is particularly unique. He is so clean and neat when killing strange people, and has the demeanor of a great master. But when using spiritual power, he only loves the most basic moves with no power at all." "Ah? You mean that a powerful spirit dweller like him is still using moves like fireball?" "Haha, yes, he is really a weirdo." He accidentally traveled to this world without history, and all kinds of weird things kept happening to him. Qin Fangdan originally thought that the weird thing was himself, but later he discovered that the weird thing turned out to be this world.