Bertilde

Bertilde (ベルティルデ, Berutirude) the second daughter of Count Groschel and Brunhilde's younger sister.

Bertilde looks a lot like her older sister Brunhilde. Their similarities are so strong that Rozemyne thinks of Bertilde as a "mini-Brunhilde" upon seeing her for the first time after her long sleep.

Bertilde is very interested in hair styling and as a consequence has become very good at it, to the point that both Elvira and Rozemyne compliment her on her abilities.

Bertilde and her sister Brunhilde are the daughters of the third Giebe Groschel and his first wife.

Like her older sister, it is planned for Bertilde to become Lady Rozemyne's attendant, once she starts attending the Royal Academy next year. For this purpose, Lady Elvira already started to train her.

Upon their return from the Royal Academy after Rozemyne's second term, Brunhilde introduces her little sister to her future lady in the winter playroom.

As planned, Bertilde enters Lady Rozemyne's service as an apprentice attendant upon her entry into the Royal Academy, despite the fact that Rozemyne is almost guaranteed to leave Ehrenfest in the coming spring, which puts a rather short time limit on their association. Even so her older sister believes that it will be a valuable experience for Bertilde, even if it is going to be a short one.

Once Brunhilde marries Aub Ehrenfest, Bertilde will become her sister's apprentice attendant.