Tenza is the 10th rank Asaemon of the Yamada clan. He joins in the expedition team as one of the Yamada Asaemon monitors and was assigned to keep watch over the criminal Nurugai.
As a samurai, he follows the ways of bushido, taking in the lesson of continuing on forward no matter what was blocking his way. He is also righteous and does not let his duties as an Asaemon get in the way of doing what was right.
(Source: Jigokuraku Wiki)
