Alqemist

True Limeblood whose origins((including how exactly they're alive after all the True Limebloods got the axe)) are a mystery. Basically just a mad scientist with the powers to create elaborate performances when explaining their schemes. Lives for the aesthetic. Rebaro is the only one who can calm them down when they get upset- they trust her more than anyone else on the ship. They test all of their inventions on whoever's willing- and Daruvi.