Collective is a compilation album

Compilation album

A compilation album is an album featuring tracks from one or more performers, often culled from a variety of sources The tracks are usually collected according to a common characteristic, such as popularity, genre, source or subject matter...

 by Japan

Japan

Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

ese music production unit I've Sound

I've Sound

I've Sound, or simply called , is a Japanese techno/trance music production group based in Sapporo, Hokkaidō, Japan. Led by Kazuya Takase, it features the talents of seasoned "sound creators" and many different female vocalists, known as to their fans....

 and volume six in their Girls Compilation album series, released on September 30, 2005. The album is a compilation of songs they have contributed to various adult PC games

Eroge

An or Ero-ga is a Japanese video or computer game that features erotic content, usually in the form of anime-style artwork. Eroge originated from galge, but unlike galge, they feature erotic/pornographic content.-History:...

 and CDs. It includes a newly recorded title track sung by Kotoko. Besides Kotoko, it features the vocals of Eiko Shimamiya

Eiko Shimamiya

, born April 20, is a female J-pop singer and member of the production group I've Sound since their first album. She is best known for singing the opening themes of the anime series Higurashi no Naku Koro ni. Eiko also handles a school called Shimamiya Size in Sapporo, Hokkaido, Japan...

, Kaori Utatsuki

Kaori Utatsuki

is a J-pop singer and a member of the I've Sound based on Sapporo, Hokkaidō, Japan. She has performed several songs for eroge together with the other I've Sound members...

, Mami Kawada

Mami Kawada

is a J-pop singer who is currently signed to Geneon Entertainment Inc. She is also a member of the I've Sound who performs soundtracks for some eroge. Mami was usually paired up with co-I've member Kotoko when making soundtracks for anime...

, Mell

Mell

Mell is a female Japanese singer from Sapporo, Japan. She is a senior vocalist of I've Sound, and one of the main vocalists. She has released six singles and one solo album...

, Momo

MOMO (singer)

is a J-pop singer, songwriter who is a member of Por, a duo which she and Ryo formed. Momo is a former member of the Japanese music production, I've Sound.- Chronology :* 1995—P・o・r was formed* 2001—The name "P・o・r" changed as "Por"...

 and Shiho.

Track listing

Chart positions

Chart (2005)	Peak position	Time in chart
Japan Oricon Oricon , established in 1999, is the holding company at the head of a Japanese corporate group that supplies statistics and information on music and the music industry in Japan. It started as , which was founded by Sōkō Koike in November 1967 and became known for its music charts. Oricon Inc...	212	1 week