{{MusicArticle
| titlejp     =そして一人だけになった
| titlejprom  =soshite hitori dake ni natta
| titleen     =And Then, I Ended Up Alone
| group       =[[凋叶棕|Diao ye zong]] and [[四面楚歌|Shimensoka]]
| groupCat    =Diao ye zong
| groupCat2   =Shimensoka
| groupCat3   =
| groupCat4   =
| released    =2017-12-29
| convention  =Comiket 93
| tracks      =8
| length      =
| genre       ={{Genre|Vocal}}
| website     =
| image       =そして一人だけになった.jpg
| banner      =
| arranger    =RD-Sounds ([[凋叶棕]])
| lyricist    =RD-Sounds ([[凋叶棕]])
| vocalist    ={{めらみぽっぷ}} ([http://cosmopolitan.pikka.jp/ こすもぽりたん])
:{{Φ串Φ}}
| illustrator =ほた。 ([https://www.pixiv.net/member.php?id=3309 いよかん。])
: carmine ([http://clocknote.net/%22 clocknote.])
: moki ([http://herihodie.net/ heri/hodie])
| other_staff =
; Planning
: {{lang|ja|人比良}}

| description = It is a collaboration between RD-Sounds and [[四面楚歌]]. All the tracks were previously released in other [[四面楚歌]] doujin works.
| autogendesc = vocal

| tracklist   =

*{{Track|01|{{lang|ja|イニシエイション}}||lyrics=Lyrics: イニシエイション}}
**''Initiation''
**arrangement: RD-Sounds
**lyrics: RD-Sounds
**vocal: {{めらみぽっぷ}}
**original title: {{lang|ja|少女秘封倶楽部}}
**source: {{GFC}}

*{{Track|02|{{lang|ja|すぐ傍にある未来}}||lyrics=Lyrics: すぐ傍にある未来}}
**''The Future, So Near To Us''
**arrangement: RD-Sounds
**lyrics: RD-Sounds
**vocal: {{めらみぽっぷ}}
**original title: {{lang|ja|夢と現の境界}}
**source: {{CoSD}}
**original title: {{lang|ja|少女秘封倶楽部}}
**source: {{GFC}}

*{{Track|03|{{lang|ja|仮定}}8||lyrics=Lyrics: 仮定8}}
**''Hypothesis 8''
**arrangement: RD-Sounds
**lyrics: RD-Sounds
**vocal: {{Φ串Φ}}
**original title: {{lang|ja|ラストオカルティズム　～ 現し世の秘術師}}
**source: {{ULiL}}

*{{Track|04|{{lang|ja|恋［}}necrofantasia{{lang|ja|］}}||lyrics=Lyrics: 恋［necrofantasia］}}
**''Love[necrofantasia]''
**arrangement: RD-Sounds
**lyrics: RD-Sounds
**vocal: {{めらみぽっぷ}}
**original title: {{lang|ja|魔術師メリー}}
**source: {{GFC}}

*{{Track|05|Star Dreamers||lyrics=Lyrics: Star Dreamers}}
**arrangement: RD-Sounds
**lyrics: RD-Sounds
**vocal: {{めらみぽっぷ}}
**original title: {{lang|ja|東方妖恋談}}
**source: {{PoDD}}
**original title: {{lang|ja|永遠の巫女}}
**source: {{HRtP}}
**original title: {{lang|ja|恋色マジック}}
**source: {{SoEW}}

*{{Track|06|{{lang|ja|ずっと近くの明日}}||lyrics=Lyrics: ずっと近くの明日}}
**''Tomorrow, Forever Close''
**arrangement: RD-Sounds
**lyrics: RD-Sounds
**vocal: {{めらみぽっぷ}}
**original title: {{lang|ja|少女秘封倶楽部}}
**original title: {{lang|ja|魔術師メリー}}
**original title: {{lang|ja|月の妖鳥、化猫の幻}}
**source: {{GFC}}

*{{Track|07|{{lang|ja|セレブレイション}}||lyrics=Lyrics: セレブレイション}}
**''Celebration''
**arrangement: RD-Sounds
**lyrics: RD-Sounds
**vocal: {{めらみぽっぷ}}
**original title: {{lang|ja|童祭　～}} Innocent Treasures
**source: {{CoSD}}

*{{Track|08|{{lang|ja|うつつのゆめ}}||lyrics=Lyrics: うつつのゆめ}}
**''Dream of Reality''
**arrangement: RD-Sounds
**lyrics: RD-Sounds
**vocal: {{めらみぽっぷ}}
**original title: {{lang|ja|空飛ぶ巫女の不思議な毎日}}
**source: {{DiPP}}
**original title: {{lang|ja|科学世紀の少年少女}}
**original title: {{lang|ja|童祭　～}} Innocent Treasures
**source: {{CoSD}}
}}