Ferris

Felix Argyle, commonly known as Ferris, is Crusch Karsten's knight and a member of the Royal Guard. Born of the fallen House Argyle, he is the finest healer in the Kingdom of Lugunica, earning the title "Blue".

Ferris has flax-colored hair, yellow eyes, and cat ears and a tail, and dresses in a distinctly girlish style. He refers to himself as "Ferri-chan", enjoys teasing those startled to learn he is male, and hates his birth name. As a healer he holds strong convictions about life and death, and secretly despises those who have lost the will to live.

Locked away and abused for his demi-human traits as a child, he was rescued by a young Crusch, whose life he saved by awakening his healing magic for the first time. Utterly devoted to her ever since, he trained as a healer to serve at her side and, after Prince Fourier's death, became her knight.