Etsuko Yashimaru's long-awaited new double A-side single "Yami Yami Lonely Planet"
The full version of "Yami Yami", which was aired on NHK's "Everybody's Uta" to great acclaim and was eagerly awaited to be made into a sound recording, and "Lonely Planet", a 15-minute-plus epic mixed by zAk, are both A-side singles.
On "Lonely Planet," Seiichi Nagai and Keigo Oyamada play guitar, Jimanica handles drums and programming, and zAk handles programming and percussion.
In addition, Off Vocal versions of both songs and a TV size version of "Yami Yami" are also included.

The accompanying DVD includes a music video for "Yami Yami" directed by Takashi Yamaguchi and a music video for "Lonely Planet" directed by Rhizomatiks.
The DVD recording of "Lonely Planet" is the "Post" version, which is now being distributed at post boxes and post offices in Roppongi, and unlike the version on the CD, consists of five parts.
Furthermore, it includes the "Minna no Uta" video of "Yami Yami" directed by Toshiko Hata, which is currently airing on NHK to rave reviews.

CD contains
１：ヤミヤミ
２：ロンリープラネット
３：ヤミヤミ（Off Vocal）
４：ロンリープラネット（Off Vocal）
５：ヤミヤミ（TV Size）

DVD contains
1：ヤミヤミ
2：ロンリープラネット（Post A)
ロンリープラネット（Post B)
ロンリープラネット（Post C)
ロンリープラネット（Post D)
ロンリープラネット（Post Office)
3：ヤミヤミ（NHK「みんなのうた」映像）