t="$HOME/Media/Anime/Kaguya-sama: Love Is War/Kaguya-sama: Love Is War s01e"
s="$HOME/Downloads/[Beatrice-Raws] Kaguya-sama wa Kokurasetai [BDRip 1080p x265 FLAC]"

for e in {02..12}; do
    mkvmerge -o "$t$e.mkv" \
        --language 1:ja --track-name '1:Original' --default-track-flag 1:0 "$s/[Beatrice-Raws] Kaguya-sama wa Kokurasetai - $e [BDRip 1080p x265 FLAC].mkv" \
        --language 0:ru --track-name '0:Wakanim'  --default-track-flag 0   "$s/Sounds/[Beatrice-Raws] Kaguya-sama wa Kokurasetai - $e [BDRip 1080p x265 FLAC].mka"
done