Henkyo Mob Kizoku no Uchi ni Totsuidekita Akuyaku Reijo ga, Mechakucha Dekiru Yoi Yome nanda ga?

Ragna, the heir to a frontier noble family, is a reincarnated former Japanese citizen who discovers that his new world is the setting of an otome game. Dreaming of a carefree life as an adventurer, his plans are disrupted when war claims his family, compelling him to assume the responsibilities of managing his family's lands. Struggling with the unfamiliar duties of a lord, his already chaotic life takes another dramatic turn when he is unexpectedly engaged to a noblewoman from a higher-ranking family. To his astonishment, his intended bride is Alicia, the esteemed lady from a prominent house.