UFO Ultramaiden Valkyrie 2: December Nocturne is a tV series anime that premiered in fall 2003.

About the production: the story comes from a manga, there are 12 episodes of about 23 minutes and its current status is "finished".

Its main genres are comedy, romance and sci-fi.

On AniList, UFO Ultramaiden Valkyrie 2: December Nocturne has an average score of 66%, a good score, and appears on 2,230 users' lists.

The franchise continues in or follows from: UFO Princess Valkyrie and UFO Princess Valkyrie 3: Seiresetsu no Hanayome.

Valkyrie, Kazuto, Akina, Hydra and friends are back for more when the Key of time suddenly appears along with many other mysterious happenings. All seemed to be linked to a person named `Valkyrie Ghost` who`s only goal is stealing Kazuto for herself. As they team up against this seeming unbeatable foe they dig deeper into the mysterious past of Valkyrie`s home planet, Valhalla. (Source: Anime News Network)

Official synopsis from AniList.