Galaxy Fraulein Yuna-1
Good and evil are eternally at war. The forces of Light and Darkness have forever been locked in conflict, ever since Time's beginning, as they will be until the end of the universe. Sometimes one holds dominance, sometimes the other, but whenever one force threatens to grow too strong, a champion is chosen to restore the balance.
Frequently, that champion has no idea of her destiny beforehand.
Such was the case when Yuna Kagurazaka became the Savior of Light: an ordinary girl from late 23rd-century Earth, called to fill an extraordinary role. Cheery and outgoing, she hardly seems like a warrior at all - but the 13 Frauleins of Darkness were defeated by her hands, and with their hearts freed, they became her allies; some of them go so far as to call her friend, as she calls all of them.
As the Savior of Light, Yuna has already fought many battles, made many friends, and foiled numerous plots by the forces of evil. Yet underneath it all, she's still the same girl she's always been, cheerful and innocent, and eager to make even more new friends.
But with the forces of Darkness always planning their next move, Yuna needs every friend she can get.
Galaxy Fraulein Yuna (or in Japanese, Ginga Ojousama Densetsu Yuna) is a Japanese multimedia franchise from the 1990s; it's primarily associated with artist Mika Akitaka, who designed most the characters and wrote much of the story.
The first game in the series was released in 1992 for the PC-Engine Super CD-ROM^2, as a "digital comic" adventure game. This game told the story of Yuna's origins as the Savior of Light, and her first adventure to defeat the 13 Frauleins of Darkness and prevent the Queen of Darkness from conquering the universe.
A second game, and then a third (side story) title, followed in 1995. Galaxy Fraulein Yuna 2: Eternal Princess focused on another of Yuna's rivals who wound up "empowered," with seven of her friends, as the guardians of a planet-destroying warship that was on its way to Earth; this game also introduced Yuri Cube, who would become Yuna's steadfast friend and ally. Galaxy Fraulein Yuna FX: Sorrowful Selene was released as both a side-story game for the PC-FX and as a pair of OVA episodes; this story detailed the plot of Fraulein D to frame Yuna for conspiracy to conquer the universe, and to have her exiled to the Ultra Black Hole.
A trilogy of additional OVAs, the Abyssal Fairy arc, came out afterwards and set the stage for the final Yuna game: Galaxy Fraulein Yuna 3: Lightning Angel.
Needless to say, none of the games have ever seen an English release (except maybe for fan translations). The OVA series, on the other hand, have been licensed in the past by ADV Films (now Sentai Filmworks); unfortunately, it's out of print.
Besides Yuna herself, major characters in the franchise include:
Yuri Cube - An android whom Yuna discovered in some ruins on Earth's Moon. She has super strength, a HUGE appetite, and is one of Yuna's most faithful friends.
Liavelt "Lia" von Neuestein - A girl from the area that was known as Germany in the late 20th and 21st centuries; while she represents what Yuna aspires to be as a proper young lady, the two of them are good friends, even as they're also professional rivals as idols and celebrities. While Lia retains the powers that she originally received as a Fraulein of Darkness (even though Yuna broke her free of the Dark Queen's control), she's also adopted the identity of the Masked Maiden, Polylina - both playing Polylina in her own TV series, and using the Polylina identity off-camera to support Yuna when needed.
(More to come, both for characters and for this article as a whole.)