{{Circle
| arrangement =Y
| name        =Arca-NadiA
| logo        =Arca-NadiA_logo.jpg
| dates       =2018 - present
| url         =https://arca--nadia.tumblr.com/
| genre       ={{Genre|Vocal}}
| members     =

| discography =

{{DiscographyItem|{{H:title|{{lang|ja|狂依存症のフィロソフィー}}|Philosophy of a Lunatic Addiction}}|狂依存症のフィロソフィー.jpg|2018-12-30|Comiket 95|An album featuring vocal arrangements of themes from ''[[Perfect Cherry Blossom]]'', ''[[Imperishable Night]]'', ''[[Phantasmagoria of Flower View]]'', ''[[Shoot the Bullet]]'', ''[[Mountain of Faith]]'', ''[[Subterranean Animism]]'' and ''[[Hidden Star in Four Seasons]]''.|link=狂依存症のフィロソフィー}}
}}