It was a novel about a noble in some northen lands who found a wife who was a knight before becoming his bride. It was just a novel about their daily lives with a lot of sugar. Thanks in advance
Hokuou Kizoku to Moukinzuma no Yukiguni Karigurashi Yep, seems that way to me. Read it long ago, but IIRC, northern snow land's lord finds the knight woman, proposes to her and she agrees; has fluff.