{{MusicArticle
| titlejp     =秘封旅行記
| titlejprom  =Hihuuryokouki
| titleen     =Secret Sealing Club Travel Journal
| group       =[[DDBY]]
| groupCat    =DDBY
| released    =2014-05-11
| convention  =Reitaisai 11
| genre       ={{Genre|Instrumental}}
| tracks      =7
| length      =18:00
| website     =[http://ddby.jp/discography/hihuuryokouki Link]
| image       =hihuu_ryokou_jacket.png
| banner      =
| arranger    =Bizen
| producer    =
| illustrator ={{lang|ja|土方萌絵子}} ([http://moyuru92.web.fc2.com/ {{lang|ja|イラストレーター 土方萌絵子）}}])
| masterer    =JeetSingh ([[Crest]])
| description =It features instrumental arrangements of themes from ''[[Changeability of Strange Dream]]''.
| tracklist   =

*{{Track|01|{{lang|ja|新緑園}}|03:45}}
** ''New Green Park''
** arrangement: Bizen
** original title: {{lang|ja|夜が降りてくる　～}} Evening Star
** source: {{CoSD}}

*{{Track|02|{{lang|ja|ドルフィンレイク}}|02:32}}
** ''Dolphin Lake''
** arrangement: Bizen
** original title: {{lang|ja|童祭　～}} Innocent Treasures
** source: {{CoSD}}

*{{Track|03|{{lang|ja|紅い洋館}}|02:04}}
** ''Scarlet Western Mansion''
** arrangement: Bizen
** original title: {{lang|ja|上海紅茶館　～}} Chinese Tea
** source: {{CoSD}}

*{{Track|04|{{lang|ja|灰の巨塔}}|02:41}}
** ''Tower of Ash''
** arrangement: Bizen
** original title: {{lang|ja|科学世紀の少年少女}}
** source: {{CoSD}}

*{{Track|05|{{lang|ja|月面エスカレーター}}|01:47}}
** ''Escalator to the Moon's Surface''
** arrangement: Bizen
** original title: {{lang|ja|華胥の夢}}
** source: {{CoSD}}

*{{Track|06|{{lang|ja|クレーターゾーン}}|02:38}}
** ''Crater Zone''
** arrangement: Bizen
** original title: {{lang|ja|幻想機械　～}} Phantom Factory
** source: {{CoSD}}

*{{Track|07|{{lang|ja|クレーター内部にて}}|02:33}}
** ''Inside the Crater''
** arrangement: Bizen
** original title: {{lang|ja|夢と現の境界}}
** source: {{CoSD}}
| notes       =
}}