Ramia

"Ramia" is a character in The Boy Who Fell. Heir to a long line of royal servers, Ramia loyally serves Lord Devil, often admonishing his mischievous behavior and, usually in vain, attempting to provide counsel. A stickler for adhering to the rules and maintaining tradition, Ramia is also more sympathetic and morally centered than her master; however, she will nevertheless obediently carry out any of the Devil's commands.

Trivia

 * She likes to drink lavender tea.
 * Her mother also worked for Lord Devil.