Species: advancea (fadingsky)
アドバンシア/adbanshia/ is a fictional species created by fadingsky.
Only half of advancea can understand language. Mostly used as slave, but there is a freeman a few(twitter ).
Normally advancea don't have a wings or horns. Only rare cases.
Known character
diana_(fadingsky)
umeko_(ammylin)
See also
https://shippo.eu/indexebg.html -> World -> Species -> Advancea
https://shippo.eu/indexj.html -> World -> 種族 -> アドバンシア
(this wiki page moved from here)