From the Start of a Divine War, I Build a Planet-Buster on the Spot

Golden finger System + mythology + fantasy imagination + genius + invincible + male-oriented + sci-fi + high-martial arts in the city + play the pig to eat the tiger Ling Feng, a corporate drone and engineer, opened his eyes to find himself on the ultimate battlefield, where the gods had fallen and the universe was collapsing! The Eastern Heavenly Court, Greek Olympus, and Norse Asgard: the allied armies of the three realms were steadily driven back by “corruption.” Divine powers failed, and the laws of the universe collapsed! Just as Athena, goddess of wisdom, was about to order a full retreat in despair, a heavenly voice rang out in Ling Feng's mind: 【Ding! High-density mythic energy field detected. Activation conditions met!】 【“Godlike R&D System” activated! Analyzing the laws of the current universe...!】 【Warning! “Entropy corruption” contamination detected. Generating countermeasures...】 “Mortal, get off the battlefield!” roared Ares, the god of war. “Seriously, where'd this dead weight come from?” Third Prince Nezha said disdainfully. Ling Feng ignored them and snatched up Hou Yi's damaged divine bow beside him. 【Ding! Scanning divine artifact “Sun-Shooting Bow” (damaged)... Analyzing the concept of “shooting down the sun”... Concept analysis complete: an absolute-hit law against stellar-class targets!】 【Initiating “Divine Core Encoding” program! Loading “Causality Lock Module” and “Micro Curvature Engine”...】 Under the gods' horrified gazes, a fearsome, sci-fi-styled giant cannon wrapped in golden circuitry appeared out of thin air! 【Congratulations, Host! You have successfully developed your first mythic-tech weapon: “Causality Lock: Star-Destroying Orbital Cannon”!】 One shot, and the shadow vanguard commander was “deleted” on the level of the laws themselves! Dead silence fell over the battlefield! The gods stared in stunned disbelief! Ling Feng: “It's for shooting down the sun! How'd you like that shot!”