|Debut (Light Novel)||Volume 7 Epilogue|
|Appears in||Light Novels|
|Classification|| Regiment Hex|
|Title (s)|| 9th Leader|
Commander-in-Chief (IU) (Formerly)
Katze is a petite girl with short neck length hair and an eye patch over her right eye.
Katze wears two different kinds of outfits. Her first outfit is a SS officer uniform with a Nazi swastika arm band, a cape tied around her neck, a witch's hat, and an eye patch that is colored burgundy or white with the Nazi swastika. Her second outfit is a woman dress shirt and tie covered by a checkered pattern dress, and a orange peel pattern eye patch.