Sign in at the End of the World: I Awakened Ten Thousand Times My Combat Power at the Beginning

[Doomsday zombies + cool articles + talents and abilities + team growth + funny routes + pretending to be pigs and eating tigers] The apocalypse is coming, and trillions of creatures have turned into zombies. The protagonist accidentally activates the [Sign-in System], and every time he signs in at a location in the abandoned city, he can get incredible rewards. Others are struggling to survive in the apocalypse, but he rises step by step by signing in. When he accidentally obtained the shocking truth about the end of the world during a check-in, he discovered that this disaster did not seem to be a natural disaster...