Why did they call it Rakuyo and connect it to not Japan? His is obviously a sabre.
the middle east didn't have European sabers, but they still developed their own sabers. it's not inconceivable for a different culture to develop an item similar to what is in another one. it happens all the time.
Military swords adopted European design traits by the Victorean era, which is the timeframe where the game takes place. In the game, the nobles in Cainhurst were fascinated by the katanas from Not-Japan (probably introduced by Yamamura) the same way Ser Alonne was in DaS2.
>as a weaboo I know more about japan than japanese developers
Okay, well "not japan" doesn't need to have identical art and technology to real japan.
Yarnham is clearly a fantasy imagining of London circa the turn of the Industrial Revolution, and english people in the 1800's didnt run around with tesla coil maces and bic lighter boomhammers