逃がした魚は大きかったが釣りあげた魚が大きすぎた件 (Associated Names)

Maria, once the designated heir of her ducal family, loses her position when her long-awaited younger brother is born. By then, all the promising noble sons in her country are already engaged, leaving her at risk of becoming a hopeless spinster. To secure a marriage prospect, she travels abroad to study in a neighboring kingdom,…