Kyosho's leader is a B-rank fighter who doesn't care much about politics before awakening his dragon, becoming violent and power-hungry. Despite being possessed by his dragon, he values controlling powerful toushi over acquiring artifacts like the Gyokuji and Hyakuhekitou. When Kanu refused to be freed in exchange for surrendering the Gyokuji, Sousou agreed and ordered its return. He often criticizes Kaku's glasses, thinking she looks better without them. Currently, he is considered the strongest character. Additionally, Sousou has vivid dreams about an old man with writing on his forehead asking him to avenge him.