Ok guys, I have a theory.
You notice how Hikoichi said this in page 3?
https://imgflip.com/i/a0vc90
Another character from a manga has already said the same
https://imgflip.com/i/a0vch7
So... does that mean that Hikoichi was Chiyo-chichi all this time?
And it doesnt stop here.
There's another...