Ranma 1/2 Omnibus 13 features story and art by Rumiko Takahashi.

Furinkan High’s newest teacher has a special martial arts ability that drains an opponent’s energy, transforming her from her childlike stature into a tall, sultry siren. Can Ranma defeat Hinako, or will he find himself in permanent detention? A sojourn to the region of Ryugenzawa reunites Akane with a boy from her childhood. But he’s dying of a deadly wound inflicted by Akane. The only thing keeping him alive is Ryugenzawa’s magical water, which is drying up. With doomed Shinnosuke on her conscience, will Akane decide to stay with him until the bitter end...? Find out in volume 13 of Ranma 1/2 in Omnibus format!