Habu Snake Sake as a Souvenir

Hi,

I am travelling in Asia (Korea and Japan for the next 3 weeks.

I will be leaving in 4 days to Seoul by plane, then I plan to come back to Japan, sightsee more and then fly back to EU. If I buy the Habu Snake Sake, will I encounter any problems when I enter Korea or Japan again? Do I need to declare it ?

by anzelm12