Ubel Blatt

Two decades before the events of the manga, Koinzell (then known as Ascheriit) was a young swordsman who earned the fabled title of Blatt Meister, or "Blade Master," for his exceptional skill with a sword. He was chosen by the Emperor of Szaalenden to be one of fourteen elite warriors on a perilous quest to defeat the evil nation of Wischtech.