Alien Invasion: This Swordsman Is a Bit Strange

[Urban high martial arts + decisive killing + revenge + no heroine + all races in the world + struggle for hegemony] The planes of the heavens merge, space cracks emerge one after another, disasters and extraordinary things come at the same time! After a hundred years of struggle, the human race finally established a new extraordinary social system. Ye Gu, a professional at the bottom of society, cannon fodder. By chance, I made a deal with the devil...