Liliana Whitehall is the third daughter of the royal family of Pailosea. But when her father forces her to follow the family tradition of being the Royal Assassin, Liliana must leave her home and kill a noble of the neighboring kingdom to fulfill her duty, or else her life might be on the line next. After being raised by a cold-hearted father, Liliana has completely lost her sense of self. She lives to follow the expectations of the royal pailosean line: Be cruel, be ruthless, and overall do what is expected of you. She must hide her role as the Royal Assassin from everyone. In the meantime, Liliana poses as the Royal Archivist in charge of the libraries inside the castle where she was raised. Not even her three siblings, Bianca, Amelie, and August know what she truly is.
After being given a mission by a noble of her kingdom, Liliana is thrust into an adventure of intrigue and magic. She fights against every belief she has while figuring out how to be true to herself.