Weaving together the past and future of Edomae sushi, Masahiro Yoshitake applies his own ideas, further developing the traditional techniques arrived at by sushi artisans of the past. For example, by steeping the white-fleshed fish kobujime in a liquid derived from kombu, he enhances its flavour and makes it more succulent by preventing any loss of moisture. The nikiri soy sauce is prepared separately according to the characteristics of red-, white-fleshed or blue-backed fish.