Janus

is a song by Fantôme Iris.

It was announced in April 30, 2021 during the "「ARGONAVIS Project Presentation -2021 Spring-」" stream, where the future contents for 3 months of AAside were previewed; while it wasn't revealed until the paid live Fantôme Iris 1st LIVE -C'est la vie!- in May 6th, 2021.

It was made public with the ingame version in June 30, 2021 as the song for the Daimon Kusunoki focused event with the same name, where it was described as "A song that was performed in a live with a masquerade ball as its theme. It depicts men and women trying to reveal what's in each other's hearts."

It is the title track for their digital single with the same name, which was released in March 2, 2022.

It is written, arranged and composed by Katō Takayuki.

Lyrics
Romaji=

Kanji =

English =

Live Performances

 * May 6th, 2021: Fantôme Iris 1st LIVE -C'est la vie!-
 * September 26th, 2021: Fantôme Iris Concept LIVE ― Gekkoukyouen ―
 * January 2nd, 2022: ARGONAVIS LIVE 2022