I remember this poster so much. Holy crap that takes me back.

user_509926 said:

I remember this poster so much. Holy crap that takes me back.

Huh, a Russian poster about No Alcohol.

Is that a water basin, or sake?
Or some other substance that she's saying "no" to?

Its sake, Japanese people sometimes drink sake from a dish called a sakazuki.

And also note in canon Kasen is a very heavy drinker herself and even borrows Yuugi's saucer shown in this image for a party.

Interesting. Thank you for answering, and not just downvoting my questions like some people around here