"Pocket" is Ai Otsuka's 16th (17th overall) single released under the avex trax

Avex Trax

, listed in the Tokyo Stock Exchange as 7860 and abbreviated as AGHD, is the holding company for a group of entertainment-related subsidiaries based in Japan...

 label. It is her third (fourth) single to be released in 2007. This is her first single to be released after her fourth album, approximately two months after Love Piece

Love Piece

Love Piece is Ai Otsuka's fourth album. It was released in two formats: CD Only and CD + DVD.The first press of the CD+DVD version includes a special music video of the song U-Boat from Otsuka's LOVE COOK album, while the first press of the CD Only version includes a 40-page original photo book.The...

. This is Otsuka's first original single since her debut single Momo no hanabira

Momo no hanabira

-Sales:*Initial week : 6,848 ; 760 *Total : 31,091 ; 13,731 ; 44,822...

, which sold 44,822 copies, to sell less than 100,000 copies.

Track listing

Charts

Oricon Sales Chart (Japan)

Release	Chart	Peak Position	First Week Sales	Sales Total	Chart Run
November 07, 2007	Oricon Daily Charts	4
	Oricon Weekly Charts	5	39,236	61,350	5 Weeks
	Oricon Yearly Charts