Also ryuma was on wano when the borders ARE OPEN
In monsters he is a wandering samurai in a WESTERN villiage NOT on wano
Stated to be travelling (chasing his own rep)
Already has a black balde by then so all of wano would know him
LEAVING CLOSED WANO IS TABOO
Ryuma is a hero on wano.
Him being buried in new wano means nothing AS HE IS THEIR SWORD GOD THEY WOULD MOVE HIS GRAVE
Firstly, disturbing a grave is extremely disrespectful. Especially of someone so revered.
Secondly, the reason Ryuma's body was able to be a zombie even tho he has been dead for centuries and should be dust by now and should have no skin or muscles at all is, because of the extreme cold of ringo where he was buried.
Ringo is a location in new wano. it is not a location of old wano.
And flower capital is also a location in new wano.
To claim that ryuma was from lower wano, you have to jump through a lot of hoops and headcanon a lot of stuff like the old wano clowns digging up the grave of their revered hero, his corpse being well preserved even tho the old wano most likely had different climate and most likely did not have a ringo, and old wano having a flower capital.
And there's also that old databook sketch from oda that shows Ryuma lived 400 years ago. You retards love using databooks so much.