What a name for a restaurant. Especially when pronounced in Japanese [it comes out something like toosu-toosu]...
Good blackboard, though — complete with Shakespeare quote mashup.
I've never been down to the basement restaurant, although I did once drop in to the ground-level "fromage bar" for a quick snifter (and a nice bite of Wensleydale)...
In case you're keen to find out more, here's Tooth Tooth's home page...