"NUMBER NINE / Kioku ~Kimi ga Kureta Michishirube~" is the eighth Japanese single and first double A-side single released by T-ARA. It was released in four editions: two Limited CD+DVD Editions, a Regular Edition and a X'mas Edition. The song "NUMBER NINE" is a Japanese version of the original Korean song, released on their fifth Korean mini-album AGAIN. The song "Kioku ~Kimi ga Kureta Michishirube~" was used as the theme song to the Japanese movie Jinx which member Hyo Min starred in. Limited Editions come in a special paper jacket, while X'mas Edition is packed in a box and comes with a remix album, a DVD, and six "T-ARA Santa ver." rubber keyholders. Regular Edition comes with the bonus track "A-HA". All editions come with a trading card with a serial code (one randomly chosen out of 7 types).
