Omniscient Restart: I Awakened the Eye of the Root at the Doomsday

I was once the strongest person in the post-apocalyptic world, codenamed 'Dark Emperor'. But when I died together with the ultimate beast, I saw my family's crystal fragments shining in its body. When I opened my eyes again, I returned to the high school classroom seven days before the disaster. The vague memories of the past life are revived with the crystal: the end of the world is a conspiracy, super powers are gifts and poisons, and the seven scattered crystal fragments hide the ultimate answer that subverts everything. In this life, I awakened the unique original ability - the Eye of Origin. I can see through the essence of all things, analyze energy trajectories, and get a glimpse of the "source code" at the lowest level of the world's operation. While everyone is still struggling to survive in the apocalypse, I have already begun to correct the bugs in this world. I conquered the violent barbarian king in the future, just because I knew he would go on a rampage and die in three days. I saved my cowardly deskmate because I saw that he had the best talent for battlefield recording. When the shadow of the dark blue tower once again envelopes the city, when the tide of world-destroying beasts engulfs the city—— I stood on the top of the ruins, and the pupils of the roots reflected all the weaknesses and fate of the enemy. "Welcome to my restarted world."