(the umlaut is the difference between being German for "fighter"
and camphor) is a Japanese light novel series with both a manga and an anime adaptation available. The anime aired in the fall of 2009.
The story starts when Natsuru Senou, a normal high school boy, wakes up to find himself mysteriously transformed into a girl. Immediately afterward, he finds a bracelet strapped to his wrist that he didn't remember putting on, and then a stuffed tiger doll named Harakiri Tora telling him that he was chosen to become a Kämpfer. On one hand, Natsuru gains great strength and fighting abilities. On the other hand, it's apparently a rule that Kämpfers can only be girls, so any boys that are chosen transform into girls when their powers activate, while those who were girls from the start transform in other ways.Hilarity Ensues
, at least until other Kämpfers decide to fight him for reasons unknown even to them. Somehow, the Kämpfers are chosen by talking stuffed animals called Messengers, who are being distributed by an unrevealed entity only known as "The Moderator." The Messengers then inform the Kämpfers who have been chosen that they have to fight each other to the death.Has a character sheet of its own.
The manga has been licensed by Tokyopop for Western markets and was set to be released in June 2011 but its future is in doubt in the United States due to the company leaving the United States. The anime has been licensed by Sentai Filmworks and was released in January 2011.
A set of two OVAs under the title Kämpfer für die Liebe
("Kämpfer: Fighter for Love") were released in spring of 2011. The first is a kind of sequel to the series and the second is pure waitress fanservice