Mercedes is a playable character who appears in Fire Emblem: Three Houses and Fire Emblem Warriors: Three Hopes. She is a student at the Officers Academy and a member of the Blue Lions. She possesses a minor Crest of Lamine. She is 22 years old at the start of the game.

Dorothea is a playable character in Fire Emblem: Three Houses and Fire Emblem Warriors: Three Hopes. At the start of the game, she is 18 years old, and the only character not of nobility or royal birth among the Black Eagles