Fuwa Fuwa? Split in two worlds!

'''Fuwa Fuwa? Split in two worlds! '''Is the eighth episode of Dual Star Precure and a crossover episode with Star Twinkle Precure. it is the first two parter of Dual Star precure, with its follow up episode being Little Twinkles of light~lun? let's work together!.

Synopsis
Things from another world are showing up in Hayu Town. When the Dual Star girls begin investigating the monster swaps three of them with three other girls in odd Pretty Cure uniforms. Meanwhile the other Dual Dtar girls find themselves in a world with grown up cures!

Plot
Strange things are happening in Hayu Town, weird trees and other plants are appearing in the place of the usual plant life. Things get weirder as the cures finally run into the monster, Katsu, Ryuko, and Usagi get hit by the monster and are replaced by three girls who appear to be around the ages of Usagi and the mysterious Cure Singularity. The monster disappears and the new cures detransform, oddly enough each one of them seems to be dressed in a scaled down version of a middle school uniform. They all seem perplexed when the Dual Star cures treat them like Usagi, they freak out when they realize that somehow they've become little kids.

Meanwhile, the other Dual Star girls find themselves in front of pink and purple cures.