Yuuhei Reijou no Kimama na Isekai Seikatsu: Tensei Life wo Tanoshin de Iru node, Jamashi ni Konaide Kuremasenka, Ex-Konyakusha-sama?

Adriana is reincarnated as the villainess of an otome game. After having her engagement to the crown prince broken off, she is falsely accused and condemned—then confined to a remote frontier. But that much was expected. Fully prepared, Adriana turns everything to her advantage! Although exiled to the frontier, she begins a carefree second life in a comfortable detached palace, lacking for nothing. Using her memories from her previous life and her quick wit, she tackles land reforms and solves local problems, earning the love and trust of the people. However, as the crown prince finds himself politically cornered, he comes chasing after Adriana—this time, intending to make her his concubine…?! (Source: Takeshobo, translated)