Jimi Reijou, Shigo deki Sumeragi-hi ni Naru! Keiyaku Kon no Hazunanoni Reiketsu Kōtei ni Dekiai sarete Imasu

Ruchelle, a plain young lady who has lived her life hiding her true self after her fiancé told her, "Don't outshine me," To make matters worse, she was unjustly dumped at a banquet attended by national dignitaries, and just as she was about to break down, she receives a sudden marriage proposal from Kainas, the "cold-blooded emperor" of a neighboring country! And what's more, he's the author of a book she's loved since childhood...? Her hobbies, her work, her love life—she'll regain her true self and achieve everything! A story of a young lady shedding her plain image and her work and her doting love!