Ranma 1/2, Vol. 1 Manga
by Rumiko Takahashi (Author, Illustrator)  Format: Paperback
 
While training at the Accursed Springs in China with his father, Ranma is cursed to turn into a girl when splashed with cold water, and back into a boy with hot water, then learns that his father affianced him to tomboy Akane Tendo