Henkyou Mob Kizoku no Uchi ni Totsui de Kita Akuyaku Reijou ga, Mechakucha Dekiru Ii Yome nandaga?

Laguna, heir to a frontier noble house on the borderlands, is a reincarnated Japanese individual who discovers this world is actually the otome game he knew. Although he wants to live a leisurely life, he finds himself struggling with the unfamiliar task of managing a territory. Suddenly, a marriage