The Caped Catgirl Is Here
Valkyrie and Kazuto set out in search of twelve magical stones with the power to grant them a long and happy marriage, but they better watch out for those pesky demons!
Aired 21/07/2005EP 3 - The Caped Catgirl Is Here
2005
UFO Ultramaiden Valkyrie 3: Bride of Celestial Souls' Day
The third season doesn`t have a particular story behind everything (like "Valkyrie Ghost" in the second season). It just tells 6 stories about the life of Kazuto & Co. with some additions: Raine and Chorus get a house on earth, the last three Valhalla princesses each get an episode, and in the last episode Kazuto and Valkyrie, who in the same episode managed to stay adult, >try< to marry again.
(Source: Anime News Network)