Partial Answer:
Taking it as face value, I presume you have to get the phonetic pronounciations of all the characters in the letter. Which are from different languages. Here's what I've surmised so far. I can't figure any rhyme or reason to the languages chosen, though. And I'm sufficiently troubled by the fact that some languages are read forward and some backwards. Must be missing something...
Spoiler Break
? ? ? ? se(arabic)
Spoiler Break
? n(thai) ? ? t + o (korean) fe(armenian)
Spoiler Break
? ? ta (arabic?) na(russian) ?
