{{MusicArticle
| titlejp     =
| titlejprom  =
| titleen     =XXXXX EX STAGE R-21
| group       =[[Mohican Sandbag]] and [[YUUGEN-YA]]
| groupCat   =Mohican Sandbag
| image       =MSR21.jpg
| banner      =
| released    =2010-08-14
| convention  =Comiket 78
| tracks      =10
| website     =
| length      =58:33
| arranger    =昼
:堕悪祭怪
:silina
:su-gaku
| catalogno   =
| musictype   =Arrange CDs
| illustrator =Hoshi Naoki
| designer    =
| masterer    =
| lyricist    =
| vocalist    =
| composer    =
| producer    =
| tracklist   =

*Trailer song. '''{{lang|ja|【貞子】U.N.オーエン・イズ・デッド}}''' ''(07:04)''
** arrangement: {{lang|ja|昼}}, {{lang|ja|堕悪祭怪}}
** original title: {{lang|ja|U.N.オーエンは彼女なのか？}}
** source: {{EoSD}}
*01. '''{{lang|ja|【貞子】U.N.オーエン【呪ます】}}''' ''(08:34)''
** arrangement: {{lang|ja|昼}}, {{lang|ja|堕悪祭怪}}
** original title: {{lang|ja|U.N.オーエンは彼女なのか？}}
** source: {{EoSD}}
*02. '''smoking fran''' ''(04:16)''
** arrangement: silina
** original title: {{lang|ja|U.N.オーエンは彼女なのか？}}
** source: {{EoSD}}
*03. '''{{lang|ja|フルムーン・スモーカー}}''' ''(07:11)''
** arrangement: {{lang|ja|昼}}, {{lang|ja|堕悪祭怪}}
** original title: {{lang|ja|月まで届け、不死の煙}}
** source: {{IN}}
*04. '''{{lang|ja|フジノヤマイ}}''' ''(04:50)''
** arrangement: silina
** original title: {{lang|ja|月まで届け、不死の煙}}
** source: {{IN}}
*05. '''{{lang|ja|けろけろハッピー}}''' ''(04:37)''
** arrangement: {{lang|ja|昼}}, {{lang|ja|堕悪祭怪}}
** original title: {{lang|ja|ネイティブフェイス}}
** source: {{MoF}}
*06. '''happy after rain''' ''(05:01)''
** arrangement: silina
** original title: {{lang|ja|ネイティブフェイス}}
** source: {{MoF}}
*07. '''{{lang|ja|妖怪のくまさん}}''' ''(05:55)''
** arrangement: {{lang|ja|昼}}, {{lang|ja|堕悪祭怪}}
** original title: {{lang|ja|ハルトマンの妖怪少女}}
** source: {{SA}}
*08. '''{{lang|ja|ハルトマンは騒いでいる}}''' ''(05:11)''
** arrangement: su-gaku
** original title: {{lang|ja|ハルトマンの妖怪少女}}
** source: {{SA}}
*09. '''{{lang|ja|平成のハッピーフルオン}}''' ''(07:33)''
** arrangement: {{lang|ja|昼}}, {{lang|ja|堕悪祭怪}}
** original title: {{lang|ja|平安のエイリアン}}
** source: {{UFO}}
*10. '''{{lang|ja|エイリアンアン♪}}''' ''(05:25)''
** arrangement: su-gaku
** original title: {{lang|ja|平安のエイリアン}}
** source: {{UFO}}
| notes=

==Notes==
The trailer song was only released on their official website as an mp3 file. Its content is basically the same as U.N.オーエン【呪ます】 but got sliced at some parts.
}}