Baus's second in command, Yv is the one who runs the majority of the operation and makes sure everything is running smoothly. Yv leads missions, handles finances, and overall makes sure things don't collapse in on itself.
Yv believes he is always right, or at least always has to be right. Any time someone contradicts him, or points out he was wrong on something, his insides boil. Is it ego, or is it perfectionism?