Tsuihou Seijo wa Juujin no Kuni de Tanoshiku Kurashite Imasu ~Jisaku no Kusuri to Oishii Gohan de Hitojichi Seikatsu mo Kaitekidesu~

After being betrayed by her own sister and having her engagement broken off, Lana, a holy maiden from the Kingdom of Gyranga, is sent as a political bride—essentially a hostage—to the beastkin kingdom of Bistonia. Braced for mistreatment, Lana instead finds herself living in total comfort! With no saintly duties to fulfill, she spends her free time sneaking out of the castle to enjoy the delicious local cuisine and secretly brewing her own herbal remedies. But just as she’s beginning to relax, the kingdom’s mysterious and curious prince, Sylva, takes an interest in her carefree behavior…?!

Original Web Novel: Kakuyomu, Syosetu
Original Web Serialization

https://www.cmoa.jp/title/327161/