Cuthfleda, frequently called Cú, works as a maid in Princess Astarotte's manor. Though appearing less often than other staff, she stands out by usually maintaining a composed and normal demeanor within the castle setting.

She has dark green hair, matching green eyes, pointy elf ears, and typically wears a maid uniform with a headdress. She stands 1.46 meters tall and weighs 36 kilograms, with measurements of 71-54-73. Approximately 13 years old, she is significantly younger than most castle staff, which contributes to occasional displays of insecurity and reserved behavior.

Her personality is quietly diligent and conscientious in her duties. She dedicates herself to being helpful despite her unassuming nature and visibly revels in the castle's peaceful atmosphere. This appreciation for tranquility likely stems from her origins in Svarthæð, a region historically scarred by conflict; she recalls no positive memories from her time there, contrasting sharply with her current calm.

Among the staff, she shares an especially close bond with Elfleda (Effie), assisting her with daily household tasks. While she generally enjoys positive relationships with other castle residents, social interactions easily fluster her. Her nationality is Svarthæð.