UFO Princess Valkyrie 2: Juunigatsu no Yasoukyoku
English title: UFO Ultramaiden Valkyrie 2: December Nocturne
Japanese title: 円盤皇女ワるきゅーレ 十二月の夜想曲
Type: TV
Episodes: 12
Premiered: fall 2003
Source: Manga
Genres: Comedy, Romance, Sci-Fi
Studios: TNK
Producers: Media Factory, KlockWorx, Toshiba Entertainment, Omnibus Promotion
Duration: 23 min per ep
Rating: R+ - Mild Nudity

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" whose 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: ANN)