Adored By My Royal First LoveKonyaku Haki Sareta Kaedama Reijou, Hatsukoi no Toshiue Ouji ni Dekiai Sareru; 婚約破棄された替え玉令嬢、初恋の年上王子に溺愛される@COMIC; I'm Adored by My Regal First Love; Beloved by the Older Prince and Her First Love: A Substitute Daughter Whose Engagement Was Broken; The Substitute Lady Who Had Her Engagement Broken Is Being Adored by an Older Prince Who Is Her First Love; 遭到悔婚的替身大小姐 被初恋年上王子溺爱; Chị gái thế thân bị từ hôn được hoàng tử cưng chiều; ถึงจะถูกถอนหมั้น แต่ก็ได้พบรักกับเจ้าชายที่เป็นรักแรก; Konyaku Hakisareta Kaedama Reijou, Hatsukoi no Toshiue Ouji ni Dekiaisareru @COMIC

Louise is a noble lady who loves books and magic devices. One day, she suddenly had her fiancé stolen by the very same twin sister she was acting as. After her dream to be a magic device researcher was destroyed, the one to save her was her first love, the First Prince Lucius, whom she was able to meet again! From a book club in a secret library to outings to magic device shops, Louise manages to regain the light in her eyes with the time they spend together. With her feeling her heart beat from Lucius’s sweet words, just when you'd think they’d get together in no time, the past that the ‘substitute lady’ doesn’t want to be known becomes an obstacle. “What do you think about this?”(No… I couldn’t possibly tell him about that.)On the other hand, Louise’s potential as a researcher is also starting to bloom…? A lady who loves magic devices and an iron-masked prince, a pure love story filled with misunderstandings!