Index: app/models/user.rb
===================================================================
--- app/models/user.rb    (revision 24674)
+++ app/models/user.rb    (working copy)
@@ -298,10 +298,14 @@
 
   # Return user's initials based on name format
   def initials(formatter = nil)
-    f = self.class.name_formatter(formatter)
-    format = f[:initials] || USER_FORMATS[:firstname_lastname][:initials]
-    initials = eval('"' + format + '"')
-    initials.upcase
+    if ::I18n.locale == :ko
+      firstname.to_s.first(2).upcase
+    else
+      f = self.class.name_formatter(formatter)
+      format = f[:initials] || USER_FORMATS[:firstname_lastname][:initials]
+      initials = eval('"' + format + '"')
+      initials.upcase
+    end
   end