Schwer-Muta, or Schwer for short, is a young girl from Rosenkreuzstilette who is easily noticeable for the pajamas she is always garbed in that resemble a cross between a cat and a wolf, complete with cat ears/wolf ears on her hood, a large bushy wolf tail, and giant cat-like paws, and often having her friend, a small white squid named Zeppy sitting atop her cat/wolf-eared hood, and can defend herself with her Geisterwand barrier, a circular shield of maces. She is very shy and distrusting towards other people - the reason for this is because of a troubled childhood that she had at an early age. The trauma of her upbringing weighs on her to this day. She cannot stand those who break their word, and literally tests the patience of those who try to get near her.
Her weapon, Geisterwand, allows her to summon a circular shield of maces to protect her, which, while primarily being usable for defensive purposes, can also be used as offense.