Extra's Re-awakening: System Errors Made Me Too OP Novel

An ordinary teenager's life takes a tragic turn when his family dies and he's struck by a truck. Upon death, he awakens the Dragon Sage system and begins transmigrating to another world, but a goddess's spell redirects him to the wrong world as an extra—a minor character rejected by the author at chapter 2. Though he gains a system and awakens a talent, something goes wrong, leaving him with nothing but mockery and abandonment. On the brink of death, he discovers the goddess's intervention has awakened something forbidden. When his system crashes due to errors, restrictions lift and cooldowns disable, granting him access to infinite shadow powers. He gains shadow summoning abilities, tames a dragon god, and assembles an army no man should possess. Equipped with these newfound powers, he refuses to accept his fate. His journey becomes not just about becoming strongest, but about survival against Soul-Beasts. Rejected by the world that tried to eliminate him, he now rejects it in return, determined to fight on his own terms.