The Daily Life of a Mercenary Girl is Really Tough

In a post-apocalyptic world ravaged by natural disasters, the remnants of human civilization have been gasping for breath, huddled in the corners of the wasteland for over a century. Faced with a heavily polluted and hostile environment, powerful mutated creatures, rampaging zombies, and the mysterious witches... What path lies ahead for a mercenary who has inexplicably turned into a beautiful girl?