{{MusicArticle
| titleen     ="Activity" Case:05 -Forgotten Paradise-
| group       =[[GET IN THE RING]]
| groupCat    =GET IN THE RING
| image       =GCHM-0021.jpg
| caption     =Pictured: [[Renko Usami]] (left), [[Maribel Hearn]] (right)
| banner      =GCHM-0021 banner.jpg
| catalogno   =GCHM-0021
| tracks      =6
| length      =29:59
| genre       =
| released    =2015-12-30
| convention  =Comiket 89
| website     =[http://activity-case-05.tumblr.com/ Link]
| illustrator ={{lang|ja|仲谷 鳰}} ([http://rireba.net/ リレバ])
| designer    ={{lang|ja|柊椋}} ([http://www.iswdesigning.com/ I.S.W DESIGNING])
| arranger    =GCHM
| masterer    =
| lyricist    =Jell
| vocalist    ={{みぃ|link}}
: {{ランコ|link}} ([[豚乙女|BUTAOTOME]])
| composer    =
| producer    =
| other_staff =
; Guitar
: sassy ([[君の美術館|kimino-museum]])

| description = It features vocal and instrumental arrangements of themes from ''[[Unknown Flower, Mesmerizing Journey]]'' and ''[[Trojan Green Asteroid]]''.
| tracklist   =

* {{Track|01|Forgotten Paradise|05:47|lyrics=Lyrics: Forgotten Paradise}}
** arrangement: GCHM
** lyrics: Jell
** vocals: {{みぃ}}, {{ランコ}}
** original title: {{lang|ja|衛星トリフネ}}
** original title: {{lang|ja|トロヤ群の密林}}
** original title: {{lang|ja|天鳥船神社}}
** original title: {{lang|ja|天鳥船神社の結界}}
** source: {{TGA}}

* {{Track|02|Forsaken Satellite|05:47|lyrics=Lyrics: Forsaken Satellite}}
** arrangement: GCHM
** lyrics: Jell
** vocals: {{みぃ}}
** original title: {{lang|ja|宇宙に浮かぶ幻想郷}}
** source: {{TGA}}

* {{Track|03|Northeast Nostalgia|03:56|lyrics=Lyrics: Northeast Nostalgia}}
** arrangement: GCHM
** lyrics: {{みぃ}}
** vocals: {{みぃ}}
** original title: {{lang|ja|未知の花 魅知の旅}}
** source: {{UFMJ}}

* {{Track|04|Forgotten Paradise (off vocal)|05:11}}
** arrangement: GCHM
** original title: {{lang|ja|衛星トリフネ}}
** original title: {{lang|ja|トロヤ群の密林}}
** original title: {{lang|ja|天鳥船神社}}
** original title: {{lang|ja|天鳥船神社の結界}}
** source: {{TGA}}

* {{Track|05|Forsaken Satellite (off vocal)|05:22}}
** arrangement: GCHM
** original title: {{lang|ja|宇宙に浮かぶ幻想郷}}
** source: {{TGA}}

* {{Track|06|Northeast Nostalgia (off vocal)|03:55}}
** arrangement: GCHM
** original title: {{lang|ja|未知の花 魅知の旅}}
** source: {{UFMJ}}

}}