Survivor's Gacha; Endless Improvisation

The world ended overnight. Cities crumbled, humanity shattered, and monstrous horrors claimed the earth. Ethan Cole should have died with everyone else… But instead, he awakened a unique ability… [Survivor’s Gacha: Endless Improvisation] “In every desperate moment, draw the unknown”. “Forge weapons from nothing”. “Create abilities that shouldn’t exist. Survive the impossible”. From a makeshift bone spear to a fortress shield, from a one-shot sniper skill to a temporary dragon’s breath… Every fight, every danger, every step in the apocalypse… Ethan can improvise. In a world where even gods can fall, only those who adapt survive. And Ethan? He doesn’t just adapt… He improvises without limits. ... [This is my first time writing a novel of this genre. It's not perfect, but I'll try my best. If you notice any mistakes, don't hesitate to point them out.]