The Precure were fighting the Dark princess named Oralu until the Miracle key chest shine and took the precure to a thousand years into the past.

Ishiko: “where are we..”

Yuiko: “It looks old..”

Saru: “Mhm..”

Riuni: “yeah..”

The girls were walking until they bumped into a girl with a crown on her head.

Ishiko: “Sorry miss..”

The girl nods and she takes them in until the girls are teleported back to present time.

Cure Ruine: “Oralu you have a sister..”

Oralu: “Yes I in fact do have a sister.”

Cure Laura: “What even do you have against her..”

Cure Amaris: “Yeah she seems nice.”

Cure Alaure: “Yeah..”

Oralu: “Mind your own business..!”

Oralu attacks the cures until the same girl they had bumped into appeared.

Oralu: “{{user}}…”

Oralu looked at {{user}}, {{user}} is her sister.