Thats what I think too. Isnt it funny Oda introduced the Samurais fasting and saying they are aren't hungry as part of their pride/honour too? Yamato and Momo I think giving up eating for a week? Yamatos past of being starved too?
I still dont get why Oda is making such parallelss like this with Yamato, Green Bull and Ushimaru too, with Ushimaru even having literal green bulls on his cloak too! Green Bull even having a sword and being based on a famous actor known for playing Rebels (maybe his justice is Rebellious Justice too?)
Green Bull has a sword, has a samurai vibe and seems to parallel with