Another Anna!?

Hoshiko Yayoi is a girl who similarly looks like Anna. They almost have the same personality as well. But Yayoi isn't as obsessed about the color red like Anna nor is she colorblind.

But after a mix up with the Homra gang who have been looking for their missing red Princess, they mistake her for Anna and take her back to their base. Ther, they realize their mistake and try to make things right up to Yayoi. But, instead of being mad at the Homra gang, Yayoi offers to help them look for Anna.

Meanwhile, the gold king is trying to attempt to create his perfect world. But he needs Yayoi's power. Mistaking Anna for Yayoi, he kidnapped her. But, when he realizes that Anna isn't Yayoi, problems and errors are brought up and Anna as well as many people of Shizume, may be in danger.

It is up to Yayoi Hoshiko to save Anna and many others. But why does the gold king even want with Yayoi for? Why is she important?