{{MusicArticle
| titlejp     =永{{lang|en|-TOWA}}
| titlejprom  =towa
| titleen     =Perpetuity
| group       =[[TsuBaKi]]
| groupCat    =TsuBaKi
| released    =2018-12-15
| convention  =ComiCup 23
| tracks      =7
| length      =30:25
| catalogno   =TBK008
| genre       ={{Genre|Vocal}}, {{Genre|Instrumental}}
| website     =
| image       =TBK008.jpg
| banner      =
| arranger    ={{連殇P}}
: {{Panda_澤}}
: HiKARiA
: {{戰場ヶ原妖精}}
: {{絳舞乱丸}}
: {{魂紙}}
| vocalist    =Napoleon
: {{賊恩}}
: {{綾辻ゆき}}
: {{哈哈}}
| lyricist    =Napoleon
: Renka ([[Echollapsar]])
: {{lang|ja|チゃんちャン@}}Tomato
: {{綾辻ゆき}}
: {{柴田ひつじ}}
| other_staff =
; Design
: Napoleon
; Illustration
: KiTA ([https://www.pixiv.net/member_illust.php?id=1922517 pixiv])

| description =It features vocal and instrumental arrangements of themes from ''[[Perfect Cherry Blossom]]'' and ''[[Imperishable Night]]''.

| tracklist   =

* {{Track|01|{{lang|ja|紅蓮}}|04:52}}
** ''Crimson Lotus''
** arrangement: HiKARiA
** original title: {{lang|ja|シンデレラケージ　～}} Kagome-Kagome
** original title: {{lang|ja|狂気の瞳　～}} Invisible Full Moon
** original title: {{lang|ja|月見草}}
** original title: {{lang|ja|千年幻想郷　～}} History of the Moon
** source: {{IN}}

* {{Track|02|star-crossed|05:08|lyrics=Lyrics: star-crossed}}
** arrangement: {{連殤P}}
** lyrics: {{綾辻ゆき}}
** vocals: {{賊恩}}
** original title: {{lang|ja|ヴォヤージュ}}1969
** original title: {{lang|ja|千年幻想郷　～}} History of the Moon
** source: {{IN}}

* {{Track|03|silver lining|04:58|lyrics=Lyrics: silver lining}}
** arrangement: {{連殇P}}
** lyrics: {{綾辻ゆき}}
** vocals: {{綾辻ゆき}}
** original title: {{lang|ja|ヴォヤージュ}}1969
** original title: {{lang|ja|竹取飛翔　～}} Lunatic Princess
** source: {{IN}}

* {{Track|04|{{lang|ja|幕間劇 - 懺悔録〜}}Les Confessions{{lang|ja|〜}}|03:05|lyrics=Lyrics: 幕間劇 - 懺悔録〜Les Confessions〜}}
** ''Intermedio - Confessions''
** arrangement: {{Panda_澤}}
** lyrics: {{柴田ひつじ}}
** vocals: {{哈哈}}
** original title: {{lang|ja|竹取飛翔　～}} Lunatic Princess
** source: {{IN}}

* {{Track|05|{{lang|ja|紅ムラサキ}}|03:54|lyrics=Lyrics: 紅ムラサキ}}
** ''Crimson Violet''
** arrangement: {{戦場ヶ原妖精}}
** lyrics: {{lang|ja|チゃんちャン@}}Tomato
** vocals: Napoleon
** original title: {{lang|ja|ネクロファンタジア}}
** source: {{PCB}}
** original title: {{lang|ja|少女綺想曲　～}} Dream Battle
** source: {{IN}}

* {{Track|06|{{lang|ja|永夜霜月}}|03:55|lyrics=Lyrics: 永夜霜月}}
** ''November of an Eternal Night''
** arrangement: {{絳舞乱丸}}
** lyrics: Renka
** vocals: {{綾辻ゆき}}, {{哈哈}}
** original title: {{lang|ja|千年幻想郷　～}} History of the Moon
** original title: {{lang|ja|竹取飛翔　～}} Lunatic Princess
** source: {{IN}}

* {{Track|07|{{lang|ja|依存の森}}|04:33|lyrics=Lyrics: 依存の森}}
** ''Forest of Dependence''
** arrangement: {{魂紙}}
** lyrics: Napoleon
** vocals: Napoleon, {{哈哈}}
** original title: {{lang|ja|プレインエイジア}}
** original title: {{lang|ja|月まで届け、不死の煙}}
** source: {{IN}}
}}