kakasi binary package in Ubuntu Focal arm64

 KAKASI is the language processing filter to convert Kanji characters
 to Hiragana, Katakana or Romaji(1) and may be helpful to read
 Japanese documents.
 .
 The name "KAKASI" is the abbreviation of "kanji kana simple inverter"
 and the inverse of SKK "simple kana kanji converter" which is
 developed by Masahiko Sato at Tohoku University. The most entries of
 the kakasi dictionary is derived form the SKK dictionaries. If you
 have some interests in the naming of "KAKASI", please consult to
 Japanese-English dictionary. :-)
 .
 (1) "Romaji" is alphabetical description of Japanese pronunciation.

Source package