Kaneko Hannosuke was a real person born in Asakusa.
He was a man who loved Japanese cuisine more than anyone else, saying, "Japanese culture lies in food."
The recipe book passed down to the grandson of Kaneko Hannosuke reads:
It describes how to make the "Secret Edomae Donburi Sauce"
The tempura bowl made using this secret sauce is
It was a spectacular dish that embodied the refined Edomae style.