I, the Wind Master, Violently Enforce the Law in 749

In this world full of monsters and weirdness, Lin Yu, like other time-travelers, awakened the golden finger, but there was a condition. He had to kill a monster to activate it. The system told him that the monster would appear on the day he turned eighteen. After waiting for so long, he finally waited for the monster that appeared in the convenience store. He killed the monster and awakened the special power "Lord of Wind". The more monsters he killed, the stronger he would become. There is also a probability of bursting into various skills. So he joined Bureau 749 and went further and further down the road of violent law enforcement. Target: "Sir, I surrender, take me back." Lin Yu chuckled, "Surrender? It's too late! Talk to my wind blade." (Decisive in killing, not the Holy Mother,) (Egoist) (Yes? No? Female protagonist)