Kitty and Mimmy have to save a kingdom and break a magical spell on a sleeping princess.

Kitty and friends recreate the story of The Tale of the Bamboo Cutter.

Hello Kitty and her twin sister Mimi (aka Mimmy) are in kindergarten and have regular adventures "over the rainbow" (in their imaginations) or around their home and neighborhood.

My Melody version of Little Red Riding Hood.

Mysterious incidents are occurring in the Apple Forrest. Precious items disappearing, others getting lost, and the prince is missing. It's up to Kitty and Mimmy to solve the cases by becoming detectives!

[Source: MyAnimeList]

Kitty and Mimmy fall through a hole and end up in a parallel world. It's identical to the one the sisters live in but it's inhabited by humans with transparent wings and pointy ears. Kitty becomes friends with Emily, a supermodel in this parallel world, and together they try to rescue Mimmy who has disappeared. Their search is hampered by Akuro--a black cat who has a mean streak.

[Source: MyAnimeList]