Ranma 1/2 is the creation of Rumiko Takahashi and Sailor Moon is the creation of Naoko Takeuchi. This fan-fiction isn't intended for commercial use but is rather a tribute to Ranma 1/2 and Sailor Moon.
Chapter 1 – Getting lost
Saotome Ranma woke up to see a green haired woman sleeping in his bed with him. Years ago this would have sent him into a wild panic but not these days. Getting out of bed Ranma put on his vest of heavy weights as it was the only way he could train anyone without humiliating them. Over the vest went the familiar purple robe of Wiseman advisor, trainer, and one of the two living ancestors of the Black Moon Clan—the royal family of Nemesis. Picking up the Jakokusuishou Ranma completed what had become a daily ritual for nearly 1,000 years.
Looking over at his companion Ranma sighed. Green Esmeraude was so much like her ancestor Tendo Nabiki though instead of money which had no value on Nemesis Esmeraude desired power. Ironically she held a trait common to her other would be suitor Prince Demando's ancestor of not able to decide between Wiseman and Prince Demando she decided she would have both.
Both Ranma and Prince Demando knew about Esmeraude's power fixation and it wasn't unpleasant to wake up to a perfectly willing woman in your bed. At least until she decided to laugh. "Of all the traits of Kodachi she had why did that one have to show up?" Ranma muttered to himself. Ranma shook his head as a familiar Ki signature showed up in his bathroom.
"Wiseman," said the familiar voice of Kōan as the woman ran into the room, "I have wonderous news."
"The barrier, it's gone."
Ranma paused and let his senses extend till they reached beyond the magical atmosphere of Nemesis. The barrier erected by Neo Queen Serenity to prevent them from leaving Nemesis was indeed gone.
"Get the Black Moon Clan together. It looks like her royal high-mess finally wants to talk."
Several hours later Ranma was speaking to the Black Moon Clan and its personal servants. "The day we have waited for has finally come. Either Neo Queen Serenity has finally seen her way doesn't work or her power has faded with time. Either way we are returning to Earth to pave the way for everyone on Nemesis to finally return to the world of their ancestors."
Ranma then nodded to Crimson Rubeus who joined hands with his cousins Kōan, Bertier, Calaveras, and Petz. Taking out the Jakokusuishou Ranma concentrated tapping into the innate teleporting ability of his old rival's decedents. The next thing everyone knew they were hit with a wild disorientating effect.
"Kuso, if that was what old P-chan went through no wonder he couldn't find his way out of a room with one door," said Ranma as he shook his head to clear it. He then stared in disbelief at the structure in front of him.
"Wiseman?" asked Sa Fulang. "What is it?"
"It's the Tendo home," replied Ranma as he heard familiar voices.
Inside the Tendo home a pink haired girl was looking around frantically. "Where's Saotome Ranma?"
"Who are you and what do you want with Ranma?" asked Nabiki smirking
"I'm Chubiusa, daughter of Neo-Queen Serenity," replied the girl as she glanced in Nabiki's direction. "I take it from the hair style I'm addressing Tendo Nabiki."
"You've heard of me?" grinned Nabiki.
"I've read about you," said Chubiusa her eyes narrowing. "Not very flattering stuff either. After she found out that it was you who sent out all those wedding invitations out to the worst people possible your own sister Akane wrote in her diary that you were a mercenary witch who would sell her own soul if it could net you a quick yen."
Nabiki's smile dropped and she frowned.
"Oh my, that is somewhat rude," said Kasumi.
"You're Kasumi," said Chubiusa. "A woman forced into the role of housewife by a father who only cried all the time and didn't have the backbone of a wet noodle. I take that back as it is an insult… to the wet noodle."
"That is my father you are insulting!" fumed Akane sporting a red battle aura.
"Finally we get to Akane who hides the fear of being raped behind a curtain of anger," finished Chubiusa. "That is why Ranma being so much better than you terrifies you."
Akane's aura winked out and she just stared at the girl. "How… How do you know that?"
"I read it or rather will read it in your diary some 1,000 years from now," said Chubiusa. "But I didn't sneak into my mother's room, steal her Ginzuishou, and come back 1,000 years so I could talk to you. I came back looking for the greatest martial artist who ever lived, Saotome Ranma."
"Mind telling us why?" asked a voice as the back door was slid open.
Chubiusa frowned at the robed figure. "Who are you? I thought I knew all the people Ranma faced and knew. You don't fit any of the descriptions."
"I am Wiseman…" said the figure as it stopped and stared at one of the people in the room. "Mom?" asked Wiseman as he looked to the person sitting next to the person he was addressing. "Ranko?!" Wiseman then started to giggle, then chuckle, and finally he was laughing hysterically. "That's rich, after 900 years old P-chan's trait kicks in with a vengeance. We are in the right place but the wrong time!"
"Wiseman? What is it? What is so funny?" asked a green haired woman who entered into the room.
"We're about 1,000 years in the past, Esmeraude," gasped Wiseman still laughing.
Esmeraude broke into a smile. "Oh that is wonderful. I get to see my other favorite ancestor in action. Better yet we get to stop Nitwit-Queen Simpleton from turning the Earth into her idea of Utopia."
Wiseman finally stopped laughing and removed his hood. "Allow me to properly introduce myself. I am Saotome Ranma better known as Wiseman. Sorry about this."
There have been so many Ranma-Sailor Moon crossovers with him as a Sailor Senshi and even one that didn't get past the first chapter with him as Beryl. I thought I would play with the idea of Ranma being a sympathetic Wiseman.
For those of you trying to place this in the two timelines I am assuming that the 38 volume Ranma manga and the 46 episode Sailor Moon first season (the DIC translation dropped six episodes) occurred concurrently with the final battle with Beryl occurring concurrently with Ranma's battle with Sa Fulang.
Roughly this is starts around manga Chapter 227 (Volume 22/20) for Ranma and episode 26 for Sailor Moon.