"We need money for your sick mother. That's why you must go work at the royal palace!" One day, Count’s daughter Muriel is suddenly told this by her father—and she flatly refuses. After all, she’s a complete recluse who prefers reading books over talking to people. Working at the palace? Impossible! …Or so she thought—until her father proposed a job in the royal library. That might be doable, Muriel thinks, and heads off to the interview. But— Why is the overly seductive Captain Sylas the one conducting the interview?! And when did she suddenly get hired to take care of holy beasts as a Beast Keeper!?