{{MusicArticle
| titlejp     =シークレット・ナンバーズ
| titlejprom  =shiikuretto nambaazu
| titleen     =Secret Numbers
| group       =[[Pizuya's Cell]]
| groupCat    =Pizuya's Cell
| released    =2017-12-29
| convention  =Comiket 93
| tracks      =9
| length      =
| catalogno   =PSYC-0023
| genre       ={{Genre|Vocal}}, {{Genre|Instrumental}}, {{Genre|Rock}}
| website     =[http://www.pizuya.com/psyc-0023/ Link]
| image       =PSYC-0023.jpg
| banner      =PSYC-0023_banner.jpg
| banner_res  =x60
| arranger    =[[Pizuya's Cell]]
| lyricist    ={{普透明度}} ([http://www.root8beat.com/ √ 8 BEAT])
:rudder-k ([http://scorefreq.net/ scorefreq])
| vocalist    ={{普透明度}} ([http://www.root8beat.com/ √ 8 BEAT])
| producer    =
| illustrator ={{普透明度}} ([http://www.root8beat.com/ √ 8 BEAT])
| designer    ={{lang|ja|アンダルソ}}
| masterer    =
| other_staff =
; Guitar
:syo
; Drums
:{{もやしん}}
:hellnian
; Bass
:pizuya
; Keyboard & Strings
:godwood
; Mix & Mastering
:pizuya

| description =It features vocal and instrumental arrangements of themes from ''[[Hidden Star in Four Seasons]]''.

| tracklist   =

*{{Track|01|{{lang|ja|カレイドスコープ}}| |lyrics=Lyrics: カレイドスコープ (Pizuya's Cell)}}
**''Kaleidoscope''
**arrangement: Pizuya's Cell
**lyrics: {{普透明度}}
**vocals: {{普透明度}}
**guitar: syo
**bass: pizuya
**keyboard & strings: godwood 
**original title: {{lang|ja|秘匿されたフォーシーズンズ}}
**source: {{HSiFS}}

*{{Track|02|Infinite Butterfly| |lyrics=Lyrics: Infinite Butterfly}}
**arrangement: Pizuya's Cell
**lyrics: {{普透明度}}
**vocals: {{普透明度}}
**bass: pizuya
**guitar: syo
**drums: hellnian
**keyboard & strings: godwood 
**original title: {{lang|ja|希望の星は青霄に昇る}}
**source: {{HSiFS}}

*{{Track|03|{{lang|ja|ホワイトディスタンス}}| |lyrics=Lyrics: ホワイトディスタンス}}
**''White Distance''
**arrangement: Pizuya's Cell
**lyrics: rudder-k
**vocals: {{普透明度}}
**bass: pizuya
**guitar: syo
**drums: {{もやしん}}
**keyboard & strings: godwood 
**original title: {{lang|ja|幻想のホワイトトラベラー}}
**source: {{HSiFS}}

*{{Track|04|{{lang|ja|エレクトリックエンカウンター}}| |lyrics=Lyrics: エレクトリックエンカウンター}}
**''Electric Encounter''
**arrangement: Pizuya's Cell
**lyrics: rudder-k
**vocals: {{普透明度}}
**bass: pizuya
**guitar: syo
**keyboard & strings: godwood 
**original title: {{lang|ja|山奥のエンカウンター}}
**source: {{HSiFS}}

*{{Track|05|Crazy Clumsy Circus| |lyrics=Lyrics: Crazy Clumsy Circus}}
**arrangement: Pizuya's Cell
**lyrics: {{普透明度}}
**vocals: {{普透明度}}
**bass: pizuya
**guitar: syo
**drums: {{もやしん}}
**keyboard & strings: godwood 
**original title: {{lang|ja|クレイジーバックダンサーズ}}
**source: {{HSiFS}}

*{{Track|06|Divine beast| |lyrics=Lyrics: Divine beast}}
**arrangement: Pizuya's Cell
**lyrics: rudder-k
**vocals: {{普透明度}}
**bass: pizuya
**guitar: syo
**drums: {{もやしん}}
**keyboard & strings: godwood 
**original title: {{lang|ja|一対の神獣}}
**source: {{HSiFS}}

*{{Track|07|{{lang|ja|カレイドスコープ}} -off vox-| }}
**''Kaleidoscope -off vox-''
**arrangement: Pizuya's Cell
**guitar: syo
**bass: pizuya
**keyboard & strings: godwood 
**original title: {{lang|ja|秘匿されたフォーシーズンズ}}
**source: {{HSiFS}}

*{{Track|08|Infinite Butterfly -off vox-| }}
**arrangement: Pizuya's Cell
**bass: pizuya
**guitar: syo
**drums: hellnian
**keyboard & strings: godwood 
**original title: {{lang|ja|希望の星は青霄に昇る}}
**source: {{HSiFS}}

*{{Track|09|Crazy Clumsy Circus -off vox-| }}
**arrangement: Pizuya's Cell
**bass: pizuya
**guitar: syo
**drums: {{もやしん}}
**keyboard & strings: godwood 
**original title: {{lang|ja|クレイジーバックダンサーズ}}
**source: {{HSiFS}}

}}