At the Beginning, All the Infected People Were Killed, but the Demon Resurrected?

The protagonist Qin Feng returns from the future and kills more than 100,000 people in ten years. He is known as a murderer and a super criminal! But in fact, he was the one who shouldered all the sins in an attempt to bring the world back to the light. However, when he killed all the biologically infected people, the monsters suddenly revived with endless weirdness, demons, demons, and sprites running rampant in the world. At this moment, he actually awakened the sign-in treasure box system! Golden Light Spell, Golden Bell Shield, Thunder Fist, Baji Beng, and endless epic level treasures appeared immediately. Ten Thousand Years Zombie: What's going on with this guy? Is your body tougher than mine? ! ! The ancestor of vampires: Damn it! Why is this person so vicious? ! Kill all my subordinates! ! Millennium Snake Demon: With this person here, how dare we enter Kyushu? ! … This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.