[quote=@Buddha]
[@Masaki Haruna] It's like early days, when Madara and Hashirama were still around. We probably just invented the flak jacket. Use that as your guideline. 
[/quote]
Hence why in my mind it’s pretty much in the earliest days of technology— which means no computers, no cameras, no mobile phone, no television, no radio, and so on. Basically the way I imagine it is feudal japan with some adjustments for “flavor”.