Rain of Evil Monsters

After humanity turned against itself, it eventually managed to unify and form an empire that expanded across the galaxy. They even succeeded in opening a portal to a fantasy world. However, this unleashed a massive war—supernatural forces poured out of the portal, triggering a catastrophic conflict. Androids, demons, angels, and aliens clashed with humanity, which was ultimately destroyed. Now, Nova, our protagonist, must survive in this horrific post-apocalyptic world.