Japlish Friday - Stuff Only

Stuff Only! (photo)

So apparently there is only "stuff" allowed here, but to confuse people even more, "stuff only" is inside the prohibition sign meaning that furthermore, "only stuff" is not allowed here. So maybe if there is a little bit of stuff and a little bit of something else, it would be OK. Make sure to ask the stuff...staff about this one.

If we peek into the Japanese realm here, it says "koko yori saki wa nyuujou dekimasen" or, "No entry beyond this point." After more consideration, you might have been able to connect this to "Staff Only"...and hence, the answer behind this riddle.