Mia

 Mia is a manticore that wishes to a be a soldier.

Character events sequence

 * 1) Mia will apply to be a soldier at your Castle in Aldlyn when Female Soldiers are allowed on the Finances and Policy screen and Lind is your general.
 * 2) Once Mia is accepted as a soldier, she will be sent to the repaired Barracks of the Vanguard.
 * 3) Talk with Mia in the barracks when you have at least 1 captured blue and green slimegirl, and the events with Jackie and Lexi advanced to the point where they're standing at the entrance of the monsterhall in your castle, to recruit Mia as a Squad Leader. Instead of equipment, her squad can change the monstergirls that she uses to fight with, which requires that you unlock their scenes first.