After the Strongest Human Beings Were Eliminated

[Not the final version, everything may be changed based on inspiration before writing] Species mutate, doomsday approaches, and an emergency response team is established. Xie Dong, the leader of the emergency response team, the last solid barrier of mankind, the sharp blade of integrity and coldness. People admire his strength and have seen his terror. He can not only draw his sword to protect the last person behind him, but he can also ruthlessly order the disposal of suspected infected people in a city, just to nip the seeds of disaster at the source. Because of this, he became the first target to be eliminated after everything was over. When the shadow of death dissipated, Xie Dong found that he had returned to before the apocalypse, and there was a strange voice in his ears. "Look, this is what happens when you are a good person." The system said with a smile. "Humankind's light of dawn, the most powerful sword of doomsday, once it is useless, won't it still abandon you like worn out shoes?" The sweet voice poured the poison of hatred into his ears: "How about it, do you want revenge? Kill all the humans who use you as a tool and make them pay for what they have done. As long as-" Xie Tong listened to the whispers in his ears expressionlessly, walked out of the room with a knife, took a taxi and went straight to City A, 200 kilometers away. The address he gave was specific to the street and community name in the city. The system is shocked: "Ah? Where are you going?" "Wait a minute, the direction is wrong——" Xie Tong: "The lair of the king of alien species." He has ended the apocalypse once, and he can naturally end it the second time. System: "..." Do it. How can I not fucking know where you are going! That's my home! ++++[The fake system, the real villain, the King of Alien Species Attacks x Humanity's Light, the Strongest Combat Sufferer] —— He is a blade that never bends, sharp and straight, never at a loss. Tips before reading: cp fixed 1v1 The only extremely thick double arrow is locked and it is forbidden to dismantle the reverse dream. Intention: None yet