{{MusicArticle
| titlejp     =東方想幽森雛
| titlejprom  =Touhou Souyuu Shimpi
| titleen     =Touhou Such A Mystery
| group       =[[IOSYS]]
| groupCat    =IOSYS
| image       =IO-0146.png
| banner      =IO-0146.jpg
| released    =2008-08-17
| convention  =Comiket 74
| tracks      =10
| website     =[http://www.iosysos.com/cd/toho8/ Link]
| illustrator ={{lang|ja|樹人}} ([http://sorahate.net/index.html {{lang|ja|虚空臨界点～ソラハテ～}}])
| designer    =
| length      =43:47
| catalogno   =IO-0146
| arranger   =[[ARM]]
:[[D.watt]]
:yohine ([[Innocent Key]])
:{{ぼいど}}
:{{柏木るざりん}} ({{lang|ja|電開製作所)}}
:{{溝口ゆうま}} ([[Innocent Key]])
| lyricist   ={{夕野ヨシミ}}
:{{ひくら}}
| vocalist   =[[3L]]
:miko
:{{lang|ja|宮簀月菜}}
:{{lang|ja|あさな}}
:{{神波千尋}} ([[天然ジェミニ|Tennenjemini]])
:{{ゆか}}
:{{まり}}
:{{lang|ja|咲希}}

| description =It features vocal and instrumental arrangements of themes from ''[[Lotus Land Story]]'', ''[[Perfect Cherry Blossom]]'', ''[[Imperishable Night]]'', ''[[Phantasmagoria of Flower View]]'', ''[[Mountain of Faith]]'' and ''[[Perfect Memento in Strict Sense (CD)|Perfect Memento in Strict Sense]]''.

| tracklist   =
*{{Track|01|{{lang|ja|[[Lyrics: タイヨウノハナ|タイヨウノハナ]]}}|03:10}}
** ''Flower of the Sun''
** arrangement: ARM, D.watt
** lyrics: {{夕野ヨシミ}}
** vocals: 3L
** original title: {{lang|ja|今昔幻想郷 ～}} Flower Land
** source: {{PoFV}}

*{{Track|02|{{lang|ja|記憶の系譜　～}} until the End of History|06:16|lyrics=Lyrics: 記憶の系譜　～ until the End of History}}
** ''Geneology of Memories ~ until the End of History''
** arrangement: ARM
** lyrics: {{夕野ヨシミ}}
** vocals: miko
** original title: {{lang|ja|ジャパニーズサーガ}}
** original title: {{lang|ja|阿礼の子供}}
** original title: {{lang|ja|夜の鳩山を飛ぶ}} －Power MIX
** source: {{PMiSS|CD}}

*{{Track|03|{{lang|ja|陽だまり猫だまり}}|04:40|lyrics=Lyrics: 陽だまり猫だまり}}
** ''Sunshine, Catshine''
** arrangement: yohine
** lyrics: {{ひくら}}
** vocals: {{lang|ja|宮簀月菜}}
** original title: {{lang|ja|遠野幻想物語}}
** original title: {{lang|ja|ティアオイエツォン}}(withered leaf)
** source: {{PCB}}

*{{Track|04|{{lang|ja|千歳の夢を遠く過ぎても}}|05:38|lyrics=Lyrics: 千歳の夢を遠く過ぎても}}
** ''Far Beyond a Thousand-Year Dream''
** arrangement: D.watt
** lyrics: {{七条レタス}}
** vocals: {{lang|ja|あさな}}
** original title: {{lang|ja|プレインエイジア}}
** source: {{IN}}

*{{Track|05|Miracle∞Hinacle|03:24|lyrics=Lyrics: Miracle∞Hinacle}}
** arrangement: {{ぼいど}}
** lyrics: {{夕野ヨシミ}}
** vocals: 3L
** original title: {{lang|ja|厄神様の通り道 ～}} Dark Road
** source: {{MoF}}

*{{Track|06|{{lang|ja|きゅうり味のビールを飲めばいいよ！ - ばらしてオッケー！ 万事解決テクノロジー -}}|03:24}}
** ''Wouldn't Cucumber-Flavored Beer Be Nice to Drink! - It's OK To Dissect! This Technology Solves Every Problem -''
** arrangement: {{ぼいど}}
** remix: {{柏木るざりん}} ({{lang|ja|電開製作所)}}
** vocals: {{神波千尋}}
** original title: {{lang|ja|芥川龍之介の河童 ～}} Candid Friend
** source: {{MoF}}

*{{Track|07|{{lang|ja|お賽銭♥ちょうだい}} - Nonstop NEW RICH shrine mix -|03:35|lyrics=Lyrics: お賽銭♥ちょうだい - Nonstop NEW RICH shrine mix -}}
** ''Donations♥Please - Nonstop NEW RICH shrine mix -''
** arrangement: yohine
** remix: {{溝口ゆうま}} (Innocent Key)
** vocals: miko
** original title: {{lang|ja|少女綺想曲　～}} Capriccio
** source: {{LLS}}
** original title: {{lang|ja|春色小径　～}} Colorful Path
** source: {{PoFV}}

* {{Track|08|{{lang|ja|お嫁にしなさいっ！}} - OTAKU-ELITE dies sweet mix -|05:20|lyrics=Lyrics: お嫁にしなさいっ！}}
** ''Make Us Your Brides! - OTAKU-ELITE dies sweet mix -''
** arrangement: ARM
** remix: D.watt
** vocals: miko, {{ゆか}}, {{まり}}
** original title: {{lang|ja|ブクレシュティの人形師}}
** source: {{PCB}}
** original title: {{lang|ja|恋色マスタースパーク}}
** source: {{IN}}
** original title: {{lang|ja|オリエンタルダークフライト}}
** source: {{PoFV}}

*{{Track|09|{{lang|ja|株式会社ボーダー商事・社歌 - 仁と侠を操る程度の能力 -}}|04:23}}
** ''Public Holdings Firm Border Inc. Company Song - Special Power to Manipulate Virtue and Decadence -''
** arrangement: D.watt
** remix: ARM
** vocals: miko, {{あゆ}}, {{lang|ja|咲希}}
** original title: {{lang|ja|ネクロファンタジア}}
** source: {{PCB}}

*{{Track|10|{{lang|ja|ひれ伏せ愚民どもっ！ - 姫様ご乱心オールナイト蓬莱ライブ -}}|04:01}}
** ''Bow Down, You Ignorant Fools! - The Princess' Insane All Night Hourai Live -''
** arrangement: ARM
** remix: ARM
** vocals: miko
** original title: {{lang|ja|竹取飛翔　～}} Lunatic Princess
** source: {{IN}}

== Notes ==
* Track 05's title is a phonetic play on words. When rendered in kana, the title would be ミラクル∞ヒナクル (Mira'''kuru'''∞Hina'''kuru'''; "kuru-kuru" is an onomatopoeia meaning "to spin").
* Track 06 is a remix of [[Lyrics: きゅうり味のビールを飲めばいいよ！|きゅうり味のビールを飲めばいいよ！]] (Wouldn't Cucumber-Flavored Beer Be Nice to Drink!)
* Track 07 is a remix of [[Lyrics:_お賽銭♥ちょうだい|お賽銭♥ちょうだい]] (Donations♥Please)
* Track 08 is a remix of [[Lyrics: お嫁にしなさいっ！|お嫁にしなさいっ]] (Make Us Your Brides!)
* Track 09 is a remix of [[Lyrics:株式会社ボーダー商事・社歌|株式会社ボーダー商事・社歌]] (Public Holdings Firm Border Inc. Company Song). It also incorporated some samplings from Andy Mack's "Godfather's Theme".
* Track 10 is a remix of [[Lyrics:_ひれ伏せ愚民どもっ！|ひれ伏せ愚民どもっ！]] (Bow Down, You Ignorant Fools!)
* The title of CD is a pun of そういう神秘 (such a mystery).
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