Maid Attacks in Destiny

"...W-w-what should I do? I'm stuck in a hellish battlefield!" Humanity lies on the brink of extinction, caught in a war against demonic beasts. One day, the young maid Orsera is inadvertently teleported into a forest on the front lines of the war. She has no weapons nor combat experience, all she has is a useless magic skill that "summons things that people don't need." When she encounters a large dragon beast, she finds herself in dire straits. She takes a gamble and summons a magical weapon called a revolver, and new class of hero is born!? It turns out her useless skill is actually better suited to fighting these beasts than any other magic… Before she knew it, she has become the last hope for humanity!? The weakest maid will rise to power and carve out a future for humanity! Facing apocalyptic odds, a survival fantasy begins! (Source: Corona EX, translated)