Sanrtio Puroland's main attraction seems to be a number of "live shows" featuring Sanrio characters. The first one we went to is a fairytale called "Someday II" (obviously a sequel to Someday I but the plot is pretty easy to follow).
The plot is about Kuririn and My Melody visiting a Fairyland - and meeting two fairies (the green one on the left represents Wind, and the blue one on the right represents water):
And of course there is a Prince and Princess:
And a magical sword:
Unfortunately, Kuririn and My Melody drank a sleeping draught in their tea, and fell into a deep slumber, but the prince managed to defeat the baddies and everyone lived happily ever after: