It isn't!
It was licensed at one point by ADV (I think) for TV in America, but it was dropped after the failure of some other shoujo shows (not sure if it was Do-Re-Mi or Mew Mew Power, but something like that).
It's still available on fansub, but only a small percentage has been subbed and even though bootlegs are fakes and you shouldn't buy them, I can't recommend this option, because there aren't any!!