Elianna is the daughter of a marquis and has been obsessed with books since she was very young. Her bookwormish nature earned her the nickname Bibliophile Princess. Christopher, the crown prince, asks this eccentric princess to marry him. The engagement frees Christopher from the factional infighting of the court, and Elianna is granted access to the royal palace archives as the fiancée to the crown prince. It is meant to be a nominal arrangement for the mutual benefit of both parties. Four years pass, and one day, Elianna witnesses Christopher speaking intimately with a viscount named Irene. Elianna realizes it is finally time to call off their engagement, but her heart is filled with a mixture of complex emotions. What will become of the true love Elianna and Christopher share?