Latest chapter opened with an explanation of the Fire Festival. Every year in the Flower Capital, the people of Wano celebrate in the hope that someday the samurai of the Kozuki will save them.
This dream was the driving force that kept them going. Able to breathe clean air, taste great water, and avoid death, the Fire Festival was the one day they were free.
Have you noticed? In the panel above there is a woman who looks like Nico Robin in the cover page of Chapter 833.
So I went and checked it out, turned out that not only Robin, but there were other similarities as well.
I tried marking them with the colour theme of each respective character.