Wamuu is one of the four remaining pillar men, spared by Kars in his infancy for his potential. He, along with Santana, were raised by both Esidisi and Kars to become warriors, though Wamuu became the more distinguished of the two. While Santana is viewed as more of a guard dog, both Kars and Esidisi regard Wamuu as a treasured subordinate.