It's called "Jalerf". It has 44 letters: 13 vowels, 29 consonants, and 2 modifier letters. However, Ё, Щ, Ъ, and Ю are only used in Russian loanwords, Џ is only used in Macedonian and Serbian loanwords, and Е and Ц are only used in loanwords of all three languages. I am not giving out lore word equivalents, deal with it. If I do make a lore out of this, the words, plot, and characters will all be different.
Credit 2 Every1.