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

The Villainess Who Came to Marry Into the Frontier Noble's Household Is an Exceptionally Capable Wife, Isn't She?

辺境モブ貴族のウチに嫁いできた悪役令嬢が、めちゃくちゃできる良い嫁なんだが？