The former leader of the Juunisen who left Konron 500 years before the beginning of the series during a staged fight with Genshitenson. By leaving the Sennin world, he was able to hunt down Jyoka in secret. Nentou is one of the few people who know about the real purpose of the Houshin project, and who know about Taikoubou's secret. He can fight both with and without paopei, and can even stop a super paopei with his bare hands. It's been said that he hold a strong sense of justice, and power that can be compared to that Dakki or Bunchuu. He cares very deeply about his half-sister, Ryuukitsu Koushu, to the point that other characters comment on his devotion.

FujiRyu re-used an earlier design he made for the game "The Great Sennin World War", Soushou, and recolored the character to create Nentou.