After being malleted into a coma by Akane, Ranma wakes up in his mind with his girl side Ranko with him. The spirit of the girl spring tells them that they must heal themselves mentally or they will die. Ranko learns about being a boy and martial arts, Ranma learns about being a girl and feelings. Very good story, hard to place as it is sort of a split into two story, but it’s only a mental split so I placed it here.