Human World Council: Salvation from Rebirth!

AD 3000 has been forty years since the Blue Star Catastrophe. After experiencing countless difficulties during these decades, the strongest humans established a federal system across the planet and the defenders above the federation began to counterattack the catastrophe that encroached on human living space. However, when they were about to succeed, the fallen immortals secretly cultivated by the Salvation Society appeared and destroyed more than 70% of the powerful humans with just one move. Humanity finally perished in AD 3001. After experiencing the last swan song of mankind, Chen Su returned to the time when he had just awakened to transcendence in his sophomore year of high school. Can he save the world in this life? The protagonist returned without memories.