Does Fujiyama Japanese Steakhouse have the "yum yum" or white sauce?

I have been to other japanese steakhouses that have what's called yum yum or white sauce for dipping meat, or putting on rice. Its kind of the consistency of ranch dressing, but doesn't taste anything like ranch! It is the best thing ever! I'm going to Fujiyama Steakhouse tonight and I was just curious! Thanks for your help:)Does Fujiyama Japanese Steakhouse have the "yum yum" or white sauce?
Most Japanese steakhouses carry similar sauces and menu ingredients, so Fujiyama should have the yum yum sauce.