After transmigrating into Uesugi Rinya, the most forgettable odd-job worker in Konoha’s armory, thermodynamics PhD Gu Mingshu accepted reality by pulling out his handmade gridded ledger and writing “Transmigrated into the Naruto world, 3% survival rate” in the first column of entropy-increasing events. Those odds were 0.2 percentage points better than his acceptance rate at top journals back in the day. Looking good.
While others relied on bloodlines to awaken Kekkei Genkai and churned out Rasengan or trained in Susanoo, he carried plain glasses with the character “Gu” etched into the arms and tinkered with a broken abacus he’d found to calculate projectile trajectories. With the [Truth Arsenal System], he turned the ninja world into a military research lab: he modified directional explosive tags to blow up a chunin skimming food-ration coupons, treated Naruto as a living chakra reactor to harvest energy, and stalked Mizuki to claim his first-purchase upgrade bonus.
His guiding principles were written on the first page of his ledger: entropy increase is the universe’s ultimate truth, and explosions are the most efficient way to increase entropy. While the Five Great Nations were still debating how to fight the Fourth Great Ninja War, Gu Mingshu had already set up a chakra-powered sniper rifle and calculated Madara of the Six Paths’ critical-hit entropy efficiency through his scope.