Menthuthuyoupi

The third member of the King's royal guard. Montutuyupi, known as Menthuthuyoupi in the Viz Media translation, (usually referred to as just "Yupi", "Youpi" in the Viz Media translation ) has the appearance of a heavily muscled human male with no obvious features that mark him as a chimera ant, except his irregularly shaped ears and his razor sharp teeth, but he is the largest of the Royal Guards, easily over seven feet tall. Yupi is the only royal guard that is a demon beast hybrid, and as a result, is a shape shifter. He has been shown to have the ability to grow wings, extra arms, and extra eyes. He has the most straightforward personality of the royal guards, and possesses a strength that comes from complete selflessness and devotion to the King's safety.

In recent issues of the manga, Knuckle estimates the size of Yupi's aura to be at least 10 times greater than Morau's, or at least 700,000.