Ranma dies when saving Akane but during his life he had many types of magic used on him including the Jusenkyo curse, so his body ended up overflowing with magical energy which included Saffron’s phoenix power and the waters from the dragon tap and the Gekkaja. All this magic changed Ranma into a water and ice phoenix egg, which soon hatched into a baby girl. Ranko grows up just as fast as Hotaru and they become best friends along with Usa. Ranko is a magical girl with water and ice powers and wings. She is not a Senshi, but is friends with them. (Sailor Moon Crossover.)