The Calculating Reincarnator

After a mundane life cut short by a rogue truck-kun, Kai finds himself reborn not as a hero, but as a minor noble in a world teetering on the brink of an arcane apocalypse. His cheat? A system that quantifies every variable, allowing him to optimize choices for maximum gain or minimum risk. Yet, beneath his calculating exterior, a gnawing fear of insignificance drives him. The world's magic is dying, and powerful factions exploit the chaos, each vying for the dwindling ley lines. Kai must navigate this treacherous landscape, outmaneuvering gods and monsters, not to save the world, but to carve out a domain where his worth is undeniable, lest he fade into the same oblivion he escaped. His every move is a calculated gamble against an existential threat, both personal and global.