UFO Ultramaiden

One day a giant wand-like object called "Key of Time" appears before Valkyrie while she's playing at the park. She starts helping others with the power of Key of Time and she keeps on using it without knowing its real power and purpose.

Rika goes to her room looking for a kotatsu and when she opens the closet door there's a girl sitting inside of it. She's another princess from Valhalla named Princess Chorus.

Chorus tells everyone about a crisis she feels is coming on but no one pays her any attention. But just like she predicted, an enormous flying object appeared in the air one day!

This episode explains how Laine and Chorus came to attend the middle school of Planet Academy.

One day Kazuto runs into a girl who looks just like Valkyrie. Ever since that day Kazuto hasn't been himself, mesmerized by the mysterious beauty of this girl who calls herself "Valkyrie Ghost".

Mehm brings everyone the new bath product which was just released in space. When they pour the package into the water, everyone is engulfed in light and turn into kids.

Kazuto finds a flyer about a karaoke contest hosted by the Hagoromo shopping district. Everyone decides to participate hoping to win the first prize, a brand new big screen TV!

Valkyrie and the entire Catgirl Maid squad go on a picnic to the snowy mountains but can't seem to find their destination.

Akidra and Hyrda have been not match to Valkyrie Ghost; but something happens and Hydra and Akina combine into one and become the most powerful super girl "Akidra"!

Akidra with amplified psychic power analyzes the ominous wave motion and sees 12 black moons. In order to solve the mystery of a certain legend of Valhalla, Ms. Sanada contacts Mehm.

Thanks to Mehm and Akidra, the mystery surrounding the connection of Valkyrie Ghost and the twelve black moons finally becomes clear.

Mehm, Valkyrie and the others continue to search for Kazuto in the airship.