小書痴的下剋上：為了成為圖書管理員不擇手段！領主的養女 第四季 13

Following the completion of her debut, Rozemyne participates in the subjugation of the \"Winter Lord,\" a powerful magical beast known as Schnetirum. With the support of Ferdinand and the knights, and by channeling her immense mana into the spear of Raidenchaft, she helps defeat the beast. Later, Rozemyne expands her educational efforts by selling teaching materials at the castle and helps her guard, Angelica, strive for academic success.