I remember the comments about the release of the 12 singles, it was mentioned it was a huge risk because it could go either extremely well or extremely bad. Thankfully it was really well promoted and worked really well for her. It was indeed crazy if you think about it releasing so much and promoting so much in just a few months, but I think it was really amazing because it was really well done.
And the design of the singles and the fact that they form an image both in the back and with the obi also helps, it makes you need to have them all... I just love having the picture of kuu on my shelf formed by 12 different CDs
I don't really buy Kuu's singles, but those were just brilliant and I couldn't resist getting them all.