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The Dungeon Dragon moved forward, his entire body was crumbling and falling apart, but he knew that he could not give up or everything he had been building until this point would fall. All this energy he had accumulated… all of it for a single and sole purpose. He wanted to bring his kin back to the world. He couldn't simply die here. He saw himself as someone that would be the hope of his dimension. After all, deep down, he knew the conditions of his own home world. The Chaos Spirits had not only invaded due to greed and malice, but necessity.
They saw an opening, a fracture in space and time that led to "somewhere else" a world without chaos, but that was not… destroying itself.
Check "The Protagnist's Sister Is Actually the Strongest"!