The 9 Russian TVOKids Letters: Ё, Й, Щ, Ъ, Ы, Ь, Э, Ю, and Я are so unhappy, they are not allowed in the Serbian alphabet. Э, Й, and Ы is really unhappy because Э and Й: Е and J has their sound. If they're in the Serbian Alphabet, then Э will punish Е for having his sound. He wants Е to just say "ye". The other punishment will be J saying "yuh". Ы: She was never in Bulgarian, Ukrainian, Macedonian, and Serbian, she is now crying.
Credit to @AidanMaherVGCP90