It's Haechi, which somehow ended up as Seoul's mascot. The Korea Times explains a little in an article from last May.
``Despite the scale and reputation of Seoul, we don't have any representative symbol. We've selected Haechi as the symbol and we hope it will promote the city internationally,'' said Seoul Mayor Oh Se-hoon.
He wants Haechi to become like the Big Apple of New York, Merloin in Singarpore and Buddy Bear of Berlin, the mayor said. Seoul will be promoted as ``City of Haechi.''
Christ. Anyway, the KT has a caption on a similar photo today:
Haechi, generally known as Haetae, is a lion-like horned creature that often appears in myths as a guardian against fire