BackgroundRangyayo (or Anglicised name Rangyan) is the language spoken on Rangya Islands (no bigger than Luxembourg or roughly twice as big as Hong Kong) near Okinawa prefecture of Japan in East China Sea.
In Sinitic mythology, Rangya Islands hold the secrets of elixir of life. There are magical fruits growing on the islands that can heal any disease, grant eternal youth, and even raise the dead.
Historically, various emperors in ancient China sent their alchemists to the eastern seas to find the fabled elixir, but to no avail. Historical text stated that Rangya was found instead.
OverviewRangyayo is an agglutinative, nominative-accusative and head-final language. It has no grammatical genders. Nouns are declined according to case but not number, gender or definitiveness. Verbs can be conjugated according to voice, tense and aspect.
PhonologyConsonants

1. /ŋ/ appears only in the syllable coda.
2. /s, z/ are palatalised [ɕ, ʑ] before /i, j/
3. /h/ is palatalised [ç] before /i, j/; and is bilabialised [ɸ] before /u, w/
4. /ts, dz, tsʰ/ are palatalised [tɕ, dʑ, tɕʰ] before /i, j/
5. /ɾ/ is an alveolar flap [ɾ] in the syllable onset; and is [l] in the syllable coda.
Vowels
Monophthongs

1. /i/ is pronounced /ɪ/ before velar codas /ŋ, k̚/
2. /u/ is /ʊ/ before velar codas /ŋ, k̚/
Diphthongs

1. /ju/ is pronounced /jʊ/ before velar codas /ŋ, k̚/
2. /uɪ/ is a falling diphthong [uɪ] after a consonant in an open syllable; and is a rising diphthong [wi] when it is a syllable of its own or in a closed syllable.
Triphthongs

I will share more about Rangyayo here when I have more spare time as lately I have been busy editing the
Rangyayo page at conlang.wikia.com
If anyone here is interested in East Asian conlang or linguistics, you are welcomed to join my
East Asian Conlangs MSN group, or you can PM me your MSN contact so I can add you to the group.