Rosalie Claudel

ロザリー・クローデル, Abyssal Jade
Florinces Otome the Abyssal Jade Shinrsquoen no Hisui formerly the Malachite of Purity. She was planning on retiring and marrying with Akanes appointment to her position but was forced to remake her contract with the king of Florence using a new GEM when Akane ran off with Kazuya instead. From Wikipedia