The album features "Shallow Sleep (Asai Nemuri)", a hit single released in July 1992. Nakajima wrote the song as a theme for Shin'ai Naru Mono e, a television drama that she made guest appearance as a doctor. Shin'ai Naru Mono e's themes song peaked at #2 on the Japan's Oricon chart in summer of 1992, and thus became her first single. This song has sold more than a million copies.

Prior to the release of the album Shin'ai Naru Mono e, the songs "Two Boats" and "Haginohara" were already performed on Yakai, which are experimental theaters Nakajima has performed annually since 1989.

"Thread (Ito)" is a love song Nakajima dedicated to Zenji Nakayama, a later leader of Tenrikyo who got married at that time. In 1998, it was featured on the television drama Seija no Koushin and was also released as a double A-Side single with "Another Name for Life". This song has become well-known through a cover version recorded by the Bank Band, a project which Kazutoshi Sakurai and Takeshi Kobayashi launched for a charity. Their interpretation, featuring Sakurai's vocals, was included on their 2004 Soushi Souai album.

In December 1992, East Asia won the 34th Japan Record Awards for 10 Excellent Albums, which is a prize that honors ten exceptional studio albums.

All songs written and composed by Miyuki Nakajima, arranged by Ichizo Seo (except "East Asia" co-arranged by David Campbell)

Mastering at Future Disc Systems in Los Angeles, by Tom Baker

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