With the confirmation of the Gorosei as top tiers, evident in both reverie and the current plot with Saturn, I think the question of Nasujuro poses a very troubling issue for the conventional Mihawk narrative.
It is of course possible that Nasujuro's god title is simply beyond the scope of the WSSM title or that Nasujuro isn't a swordsman at all but a mixed fighter like King. But either case inherently casts Mihawk as somewhat of a fraud.
However, there is another possibility. What if Nasujuro was the previous WSSM and that Mihawk stole his title?
So far, Mihawk is the only person in the story who has the WSSM title. This begs the question, who did he take it from? We know he didn't take it from Shanks because Shanks didn't even become a yonko until well after he lost his arm, at which Mihawk stopped fighting him. Could he have taken it from a former admiral? Well that would fit his marine hunter reputation, but that begs the question "why haven't we heard about it before?". Surely Oda could have easily revealed such a fact to hype up Mihawk.
I think Nasujuro makes the most sense as the former WSSM. It would explain why we haven't heard about a past WSSM, not even during the Roger era. It would explain how Mihawk got his title, by defeating Nasujuro. Lastly, it would add relevance to the inevitable Nasujuro vs Zoro fight in the final war. This would be the fight where Zoro surpasses Mihawk's greatest rival.
Oda could even have Nasujuro win back his title from Mihawk, making Zoro vs Nasujuro the fight for WSSM.
Ultimately tho, this is just a possibility and an attempt to rationalize how Mihawk is the WSSM and yet amongst the final villains. It could also just be the case that the god title surpasses the WSSM title and that Nasujuro is a mixed fighter.
It is of course possible that Nasujuro's god title is simply beyond the scope of the WSSM title or that Nasujuro isn't a swordsman at all but a mixed fighter like King. But either case inherently casts Mihawk as somewhat of a fraud.
However, there is another possibility. What if Nasujuro was the previous WSSM and that Mihawk stole his title?
So far, Mihawk is the only person in the story who has the WSSM title. This begs the question, who did he take it from? We know he didn't take it from Shanks because Shanks didn't even become a yonko until well after he lost his arm, at which Mihawk stopped fighting him. Could he have taken it from a former admiral? Well that would fit his marine hunter reputation, but that begs the question "why haven't we heard about it before?". Surely Oda could have easily revealed such a fact to hype up Mihawk.
I think Nasujuro makes the most sense as the former WSSM. It would explain why we haven't heard about a past WSSM, not even during the Roger era. It would explain how Mihawk got his title, by defeating Nasujuro. Lastly, it would add relevance to the inevitable Nasujuro vs Zoro fight in the final war. This would be the fight where Zoro surpasses Mihawk's greatest rival.
Oda could even have Nasujuro win back his title from Mihawk, making Zoro vs Nasujuro the fight for WSSM.
Ultimately tho, this is just a possibility and an attempt to rationalize how Mihawk is the WSSM and yet amongst the final villains. It could also just be the case that the god title surpasses the WSSM title and that Nasujuro is a mixed fighter.