Now that you mention it, I think this might be intentional...
Makio is rough around the edges, brash, and noisy, but confident and has very bright wide eyes.
Suma is more talented than she states about herself, a crybaby, and based on the Taisho Era Secret is very forward with her affections for Uzui and approached him first to request to be one of his wives.
Hinatsuru is gentle, level-headed, thoughtful, and considerate (she did keep Daki's farewell gift even though she suspected her, later getting trapped by it).
There are too many similarities to the main trio for it to be a coincidence.