Ranma 1/2 2-in-1 Edition 1 collects volumes 1-2 and features story and art by Rumiko Takahashi.

One day, teenaged martial artist Ranma Saotome went on a training mission with his father and ended up taking a dive into some cursed springs at a legendary training ground in China. Now every time he's splashed with cold water, he changes into a girl. His father, Genma, changes into a panda! What's a half-guy, half-girl to do?

Years ago, Genma promised his old friend Soun Tendo that Ranma would marry one of Soun's three daughters and carry on the family's martial arts school. Unfortunately, the girl picked to be Ranma's bride doesn't seem to like him, Ranma keeps getting into fights... and did we mention that whole changing into a girl thing?

Ranma 1/2 2-in-1 Edition 2 collects volumes 3-4 and features story and art by Rumiko Takahashi.

Being a martial artist, Ranma just can't resist the call to combat and takes on one opponent after another: Ryoga, a lone-wolf fighter with no sense of direction; Shampoo, a Chinese Amazon who has pledged to kill him; and finally Shampoo's suitor Mousse, a martial arts master of hidden weapons. Is there such a thing as TOO much fighting spirit?

Ranma 1/2 2-in-1 Edition 3 collects volumes 5-6 and features story and art by Rumiko Takahashi.

Chinese Amazon warrior Shampoo hasn't given up on Ranma yet - only instead of killing him, she now wants to marry him! There are just a few obstacles in the way of their future happiness, though, starting with a childhood phobia of Ranma's and followed by Shampoo's suitor, Mousse, martial arts master of hidden weapons. Can Ranma escape Shampoo's soap opera? Or a better question might be, does he even want to?

Ranma 1/2 2-in-1 Edition 4 collects volumes 7-8 and features story and art by Rumiko Takahashi.

Back when Ranma's father, Genma, and Akane's father, Soun, were young martial artists, they learned the secrets of Anything-Goes Martial Arts from one of the greatest masters of all time. Unfortunately, he's also someone they would do just about anything to get away from, and the entire Tendo household is about to find out why. Followed by a stirring rendition of Romeo and Juliet... and Juliet... and Romeo...

Ranma 1/2 features story and art by Rumiko Takahashi.

Ranma's latest rival is Ukyo Kuonji, a chef in the art of cooking okonomiyaki, Japanese pizza. But the latest fight is more than just a rivalry with a fellow martial artist - Ukyo's issues with Ranma go all the way back to childhood and a certain promise he once made. Though just because there's a new rival doesn't mean the others have gone away, as Mousse returns to kidnap Akane!

Ranma 1/2 2-in-1 5 collects volumes 9-10 in an omnibus format.