National Killer: Only I Choose Barrett!

Tens of billions of people around the world have come to the fantasy world, bound to the Killing Temple and become killers! As long as you accept the mission and kill the target, you can level up! At the beginning, everyone faces the choice of novice gift pack. Fantasy skills, low-level magic weapons, and ordinary firearms! Faced with the mysterious fantasy, everyone chose Kung Fu. Lin Ye, who was reborn, locked onto Barrett without hesitation! Later, while others were still practicing the exercises hard. Lin Feng has already taken Barrett and accepted the mission. No one knows better than him what being one step ahead means! Although the firearm is useless in the later stage, it can allow him to kill any strong person in the Golden Core realm at will in the early stage! And killing the target represents a generous upgrade reward! Who knew that after completing the first kill reward, he would obtain the Law of Technology? Integrating the laws of science and technology, Barrett was upgraded into a growable weapon? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.