Louis Miller

He is one of the Seven Sages, the Barrier Mage. He was chosen as one of the Seven Sages at the same time as Monica, so he calls her "colleague". Although he is with the first prince's faction, he received sealed orders from His Majesty directing him to serve as the second prince's bodyguard, and he pushed that duty onto Monica. He seems unable to stand up to his beloved wife, Rosalie.