Kuno purchases a strange egg, believing that the mysterious powers of the legendary Phoenix will help him defeat Ranma. But when the egg hatches on his head, the bird goes out of control and wreaks havoc all over Tokyo. Ranma and the gang must use any means necessary to get the Phoenix to leave Kuno's head and fly away.

The everyday Sanyo family gets an unexpected surprise in the shape of a new lodger-Hattori is a ninja boy who has come down from the Iga mountains to attend normal school. Befriending Kenichi Sanyo, who is the same age as he, Hattori starts attending school undercover, occasionally accompanied by his brother, Shinzo, Shishimaru the ninja dog, and Kenichi's girlfriend, Yumeko. The gang is also threatened by the rival Koga ninja, Kemumaki, and his evil sidekick, Kagechiyo the Shadow-cat. (Source: The Anime Encyclopedia)

After the end of the Hokuriku front, a new land for the Japanese people was created, governed by the New Japan Cooperation Organization. However, this did not dramatically improve the situation in Japan. The effective control of the various powers in the country continued, and the oppression of the Japanese people, though lessened, continued. The same is true of the isolated islands in the South Sea. The Oceania Army, which is in effective control of the island, and the resistance organization "Hinukan" that resists them. Then the North American forces attacks, aiming to take over the isolated island--.

Japanese yakuza clan heir Ranmaru just got married on a lavish cruise ship, but things aren't as they seem. The marriage is just for the appearances, and he ends up getting drunk and spending the night not with his bride but with the sexy ship captain. When the two men meet again in Italy, it is the start of a spectacular love story.