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Wife of Sumiyoshi Kamado and ancestor of Tanjiro Kamado.
Personality.
Currently, little is known about Suyako's personality, but Tanjiro's memories show that she was a kind and hardworking girl who always did her best for her children. She was also known to have a tendency to constantly fall asleep.
History.
All that is known about Suyako's life is that she married Sumiyoshi and had a son and daughter with him.