Watashi Wo Hitojichi Ni Shita Kazoku No Minasama, Tekikoku Oke Ha Watashi No Mikata No Yodesu Saikyo Oke to Saijo Niyoru Soreinaru Seibai Geki (Belize Fantasy) [Light Novel]

[Machine Translation] Mariebelle is a princess of a small country who is mistreated by her family as an "interloper. Because of her defeat in the war, she is given in marriage as a hostage to Gilbert, the third prince of the enemy country, who is feared to be the strongest on the continent. The marriage is a cold one, but her talent as a pharmacist from a previous life blossoms! She creates herbal teas and new medicines for the busy royal family and their attendants, and gradually gains their trust... He also grows closer to the cold-hearted Gilbert, and finds that the enemy royal family has become his allies! Then, a letter arrives from a family in her homeland with a plot, ordering her to commit suicide - and the royal family, led by Gilbert, decides to take thorough action against her with the country's most powerful knight squadron. The abandoned princess makes a great comeback to find happiness with an invincible ally!

「邪魔者」と家族に虐げられる小国の王女マリーベル。敗戦を理由に、大陸最強と恐れられる敵国の第三王子・ギルベルトに人質として嫁がされることに。冷ややかな結婚生活が始まるも、薬師だった前世の才能が開花!忙しい王族や侍女のためにハーブティーや新薬を作り出すと次第に信頼を得て...。冷徹なギルベルトとも距離が縮まり、気づけば敵国王家が全面的な味方に!そんな中、ある企みを持つ祖国の家族から自死命令の手紙が届き―ギルベルトを筆頭に、王家は国の最強騎士団を率いて徹底制裁を決意。捨てられ王女が無敵の味方と幸せを掴む大逆転!