Following the traumatic public breaking of her engagement by her fiancé, the Second Prince Fred—who discarded her for her own twin sister, Lina—Louise finds solace in her reunion with , the First Prince.

: The manga highlights the cruelty of Louise’s family, particularly her sister Lina, who stole Louise's achievements to be praised as a "talented woman" while Louise was mocked as "useless".

: As they spend more time together, Louise’s eyes regain their "spark". Lucius, often described as a "iron-masked" or stoic figure, reveals a deeply affectionate side, showering Louise with unconscious sweet words that cause her heart to flutter.

: Lucius takes Louise to a secret library , a space that rekindles her long-suppressed love for books and magical devices. In this quiet sanctuary, Louise begins to shed the "incompetent" persona she was forced to maintain while acting as Lina's substitute.