Suiyan
So, a Wano theory here... so he’s names Wano, W A N O. You know another place called Wano? Wano in one piece! And what’s that supposed to symbolize?! JAPAN! Wano’s a ISEKAI protagonist!!! Small ad on his sword style where he sheets the sword is a common samurai thing (I think it is, see it allot in samurai movies). Case closed.