Firt, I thought they took inspiration from some Middle Eastern culture. But as I explored their Lore, I found some things that sounded quite Japanese (different terms in the matter of http://content3.uesp.net/wiki/Lore:Sword-singer, as "Ansei" or ""Shehai Shen She Ru", the name of the best sword singer in history, Frandar do Hunding Hel Ansei No Shira or the very name of Yokuda). I would like to know about Yokudan culture, as for Skyrim I would like one of my characters to be a very traditionalist Redguard, interested in "The Way the Spirit Sword". So, Loremasters, what can you tell me about Yokudan culture? Were Anseis some kind of samurais, or maybe something completely different?