There's a big diffference between the daily chart and the weekly chart. The daily charts usually change with whatever has been released the latest. The weekly chart is a better indication of how well an album is selling. RAINBOW is still number 1 on the weekly chart, and in my opinion, that's more important. RAINBOW sold over a million copies, while its closest competition has only sold 301,028 copies. So Ayu is doing pretty well, even if she's number 2 on the daily charts! hehe
