Ranma ½ (Japanese: らんま 1 / 2 , Hepburn: Ranma Nibun-no-Ichi, pronounced Ranma One-Half in English) is a Japanese manga series written and illustrated by Rumiko Takahashi. It was serialized in Weekly Shōnen Sunday from August 1987 to March 1996, with the chapters collected in 38 tankōbon volumes by Shogakukan. The story revolves around a teenager named Ranma Saotome who has trained in martial arts since early childhood. As a result of an accident during a training journey, he is cursed to become a girl when exposed to cold water, while hot water changes him back into a boy. Throughout the series Ranma seeks out a way to rid himself of his curse, while his friends, enemies, and many fiancées constantly hinder and interfere.
天道道場の主、早雲は娘の許嫁になる約束の早乙女乱馬親子が帰るのを知り大喜び。しかし、天道家に現れたのは可愛い中国娘とドでかいパンダ。実は「呪泉郷」という池の呪いにかかり、乱馬は水を被ると女に、父の玄馬はパンダに変身してしまうのだった…。そして早雲の娘であるあかねと同じ風林館高校へ通うことになった乱馬。だが、女のらんまに恋をした久能帯刀や永遠のライバル宣言をした響良牙など、学園中はすったもんだの大パニック…。