Life can't get much worse for Ranma after being stuck as a cursed girl and engaged to Tendou Mamoru. Unless, of course, the Sailor Scouts have anything to say about it.
Ranma has arrived at the Tendou dojo, but there is a small problem. His curse is permanent! That's all right, though. The engagement will just be passed on to a cousin, Tendou Mamoru. Hope Sailor Moon doesn't hear about this.
Genma and Ranma are coming. But this Ranma has been permanently stuck as a girl, so she can hardly be engaged to one of Soun's daughters. Fortunately they have a cousin, one Mamoru Tendo. He'd be a good person to engage to Ranma to join the schools. Of course Mamoru has got Usagi, but he can hardly admit to that! A run in with a youma and the Sailor Senshi puts them and Ranma at odds as well. How on earth is this mess going to be sorted out?