[Kakeru]

Originally Posted by jiarongisme

There are 6 different versions of A.

http://www.eneabba.net/ayu/disco/singles/10.A.htm

7, actually, as shown by the link you posted, hehe.

Blue, orange, pink, & green were the first press limited editions, & black was the regular edition. When the single sales reached 1 million copies, avex released the gold version to commemorate that benchmark. When sales reached 1.5 million, the "kinkira" version (shown on the site as a 2nd gold) was released.