Does anyone remember Professor Plot Device?

We learn a lot of things about Wu on this page, not the least of which is his severe vertical handicap. 

Also, this page heralds the return of NPC DESIGNS! (Woo hoo! Thanks, guys!)
-Today, in the second panel, we have an adorable little coffee lady (pictured here without coffee), by Genevieve H. I gave her a little Dwarf boyfriend, and they're holding onto each other pretty tightly.
-There's also that brightly-dressed fellow, who was designed by Kyle Latino! His name should sound familiar: he made this piece of art of Dotra and Orrig, and he's the author/artist of the webcomic She-Dwarf (who you can also see standing to his left!). 

Hey, do I have any Korean Readers who are familiar with or fluent in Hangul? I have some questions and I need someone whose brain I can pick, if it isn't too much of an inconvenience. It would be specifically about Wu's seal, which is seen on his left breast. Please shoot me an email at DaughterOfTheLilies(AT)gmail, if you have the time! Thank you!