The gods have given me a face without a face
and have given me the name "nameless"
If you visit my prison, please free me from it
and I will reward you when we finally meet
face to my faceless face.First idea: the 353rd item: The "face" would be the item image, which exists but is not found anywhere easily. It has no name because it does not appear in the fridge, and if you free it from its prison (i.e. get it from Soccerfest to Hammerfest somehow), you will be rewarded with its effect...
Unlikely to be correct.
"Visit my prison" sounds like it is a coeff 0. For example

is imprisoned in its cage in lvl 97.1, it is faceless until you look at it (so you the reward is seeing your image. And, of course, the quest and 69 points). But it is not nameless. It even has an own name (Bancal) instead of a descriptive name like "blue hallucinogenic mushroom"
So these are the first two ideas... Don't want to think about more for now