Years ago Genma killed Ranma with the Nekoken when Admiral Takeshi Katsu of the Nemesis Space Fleet fights him for killing a child. Genma wakes up and knocks Takeshi out and using a age changing mushroom changes him to the same age as Ranma and takes him for his son. Years later Takeshi’s computer Kiva finds him and awaken his memories, she gets the help of Washu to deal with Ranma’s problems. Ranma cured of the Nekoken and enhanced by Washu learns that his real mother is alive and from Jurai, meanwhile he plans to deal with Nerima and help out the Senshi. (Sailor Moon, Tenchi Muyo, Gold Diggers crossovers)