How to beat a Time Looper when you can't loop yourself [LitRPG Apocalypse Regressor]

Sid wanted a quiet life. That choice vanished when Earth was dragged into a divine war. Portals flared across the planet, leading to Kaliga, a primeval world in perpetual conflict. Earth wasn’t Kaliga’s ally. It was a colony. A pawn. Sid tried to walk away from the war, but a masked ambush killed him. He woke up in his younger body on the day he gained his first skill. The world matched his past, but everyone called him by a different name. His killer remained a mystery. Was someone rewriting history—or worse, his memory? Before the masked hand struck again, he had to uncover why his memories defied reality, and unmask his killer. He couldn’t shake the feeling that his murder was tied to the ancient war. What to Expect: [+] Mind-Mage Assassin MC[+] Skill Evolutions[+] Smart MC[+] Secret Organisation Building (later in the story)[+] Weak to Strong[+] No Harem[+] Inspired by Mother of Learning and Lord of the Mysteries Release Schedule: Mon - Wed - Fri (08:00 AM ET).  Note: The time travel/ second chance elements come into the picture after chapter 12.