Disclaimer: I do not own any rights to Batman or Sailor Moon.

This is an AU fic, so somethings have changed in the story line. I hope you enjoy!

Batman stared at the woman in front of him. Standing in a regal matter, the look on her face one of annoyance more than anything. You'd never know she'd just got done fighting. . . whatever that thing was. Her white outfit and silver hair contrasted his black suit, and shone so bright it almost hurt his eyes.

"Who are you?" He asked, finally breaking the silence since the battle ended.

"I am Sailor Cosmos," she replied, turning to face him. "Who might you be?"

"I'm Batman." He took in her appearance. She was magnificent! Eyes as blue as the ocean, lips pink as a cherry blossom, and her hair the color of the moonlight. Never had Batman seen something so perfect. He shook his head to clear it. "What was that thing?"

"An outsider from another world. It never should have gotten past my outer defenses, I apologize for the destruction it caused," she replied.

"How do you fight in that outfit?" He asked, taking in her high heels and short skirt.

"The same way you do," she replied with a smirk.

A siren wailed behind the man in black and he turned to look. "I've got to," he began to talk, but as he turned around, the girl was gone.

Serenity looked out the window of her hotel room. "How did she get past my defenses," she wondered out loud. "I haven't had to transform into Cosmos for a long time. I'll just have to go to check on them when I have the chance." She sighed and fell back onto the bed. "Gotham City is a disgusting place. So many terrible things happen here, but I guess it's a good thing I was here, there's no way Batman could have handled that on his own." She stretched and yawned. "I suppose I should get ready for bed."

Bruce fixed his tie and walked into the art gallery. One thing about being a millionaire was he had to attend things like this from time to time. Events and charities, he needed to make an appearance, even though most of the time he would rather be out as Batman, fighting the crime on the streets.

Tonight, was a charity art show, a famous painter had come to Gotham to show and sell some of her paintings, while raising money to help save the trees. He hadn't heard of this particular artist before, she has shown up out of nowhere, according to reports, just became famous overnight it almost seemed. He'd researched her before coming tonight, and when he could find nothing, his interest was piqued.

He was admiring a landscape when another painting caught his eye; one of a girl in a sailor uniform. He walked over to it and read the title. "Sailor Moon."

"What do you think?" A soft feminine voice asked form behind.

Bruce turned, quite surprised, he hadn't even heard her. "She's very pretty," he said.

The woman smiled. "It's nice to meet you Mr. Wayne. I'm Serenity Tsukino, the artist of this gallery." She offered him her hand.

He shook her hand, marveling at the strength behind it. "This is quite the painting," he said turning around. "What was the inspiration?"

"Back in Japan, there is a legend. It says that 300 years ago, a great evil fell upon the earth. An evil which could only be vanquished by Sailor Moon and her Guardians," Serenity began. "The legend says that Sailor Moon was the princess of the moon," she moved to the next painting, which depicted Princess Serenity. "And her court we're the princesses of the other planets in the solar system. Each one bore special powers given to them by their planets so they could defend their princess, and the kingdom they loved." She moved to the next series of paintings, those of the evils she fought. "They fought many tough opponents, and gained new allies along the way. Including the Prince of the Earth, Endymion." She stopped in front of a picture of Tuxedo Mask and Sailor Moon, a sad smile on her face. "They fell in love, as they were destined, and gave each other strength through all their battles." She finally stopped in front of a group painting, sitting on the bench in front of it. "It says they finally vanquished all evil in the world, and were able to rule in a place called Crystal Tokyo. This picture shows Sailor Moon and all her guardians, her King by her side, and their beautiful daughter in front of them."

Bruce studied the picture in front of them as Serenity's eyes went blank and her mind wandered.

She missed them; every one of them, every day. She wished she could go back to those happy times, where Mamoru stood next to her, and her scouts stood behind her. But they were gone, and she was alone, so alone, for so long.

Their final battle seemed like only yesterday, though it had been over 300 years ago. She could see all her scouts, beaten and bleeding, her beloved husband trying his best to stay strong. Eternal Sailor Moon stood weakly in front of her team, trying her best to protect them. Blood ran down her face and covered her white jump suit.

Their enemy was strong, and their only option left had been to pool all their power together as they had done so many times in the past. All Nine scouts, Tuxedo Mask, and even Luna and Artemis sent all their power to Sailor Moon. It was then she gained the power of Sailor Cosmos and defeated the enemy. Only to realize after, everyone had been too weak for the transfer and had given her their life force as well. She tried, effortlessly, to bring them back with her powers; reincarnate them, anything, but nothing worked. She may have saved the planet that day, but she destroyed her whole world.

"Is everything ok?" Bruce asked, pulling her out of her thoughts.

She smiled. "Yes, it's just been a long day."

"You say this is just a legend?" He asked.

"Well, unless you know of a Crystal Tokyo." She forced a laugh. "Please excuse me now, I must make my rounds."

Bruce nodded his head and walked to the portrait or Eternal Sailor Moon. Oliver Queen walked up beside him. "I've seen this woman before," Bruce told his friend. "Or someone very similar to her."

Oliver looked puzzled. "Where?"

Bruce took Oliver to a secluded place and told him about the incident the other night.

The evening continued on, taking the large group of people into a larger room where they would have an auction, dinner, and the ability to mingle and dance.

Bruce found himself drawn to the young artist once more. Her hair was so blonde it almost seemed gold, her eyes blue as the sky. Her red dress brought out the red in her glossed lips; and there was something different about her. He walked up beside her and asked her for a dance.

They were silent as they moved across the floor with a grace equal to that of professionals. Serenity closed her eyes and followed Bruce willingly. She hadn't had a dance like this in years. He pulled her close to him breathing in her scent.

"Where did you learn to dance like that?" He asked her quietly.

"I guess you could say it's in my blood." She pulled back as the song ended and smiled at the Millionaire in front of her. "Thank you for the dance."

"The pleasure was all mine," Bruce purred as he kissed her hand.

Suddenly the building went dark, and people started to panic.

"Get everyone out," Bruce told Serenity.

As Bruce tried to find a safe place to change, a blinding white light lit up the room, and Sailor Cosmos appeared. She waved her staff and the lights came back on, illuminating everyone.

Once again, she looked more annoyed than anything as she addressed the men who were attempting to steal the valuables in the room. "These people are here trying to have a good time and help save this rotting planet; yet here you are trying to take advantage of them. Luckily for me, we already have several members of the Police force here who can take care of you once I'm done."

"Oooo, I'm so scared," one of the men cried sarcastically. "A girl in a skirt is gonna take us out." He pulled a gun and aimed it at her. "Give up girlie."

Sailor Cosmos sighed. "Shine Aqua Illusion." She smirked as all the robbers were bound in ice. "Officers, if you don't mind taking care of these vermin, the rest of you can continue to enjoy your evening. And don't worry, they'll defrost as soon as they're safely behind bars." And with that, she disappeared.

Oliver stood beside Bruce in awe. "Wow," was all he could say.

"Yeah," Bruce agreed.

"She puts us to shame," Oliver admitted.

"Yeah," he turned to the blonde man. "Where did she come from? That's what I want to know." He looked up and spotted Serenity kneeling next to an elderly woman who was very shaken up by the latest incident. "Excuse me, Oliver."

Serenity placed her hand on the woman's back. "Everything is ok, you're going to be fine."

The woman relaxed almost instantly. "Thank you, young lady." She smiled.

Serenity walked up to the stage. "Is anyone hurt?" She asked the crowd in front of her. No one replied. "I apologize for any distress this has caused; if you wish to leave, feel free. For those that wish to stay I will have more champagne brought out, and we can continue the night as planned." She exited the stage, and music once again began to play.

"You're very calm," Bruce said from behind her.

She turned. "I've had to learn," she told him. "But, I think I'll take my leave for the night. Good night Mr. Wayne." She curtsied slightly and began to walk away only to be grabbed by the wrist.

"Ms. Tsukino, wait," Bruce said. "How long will you be in Gotham?"

She smiled and faced him. "I'm not sure; a few weeks at least."

"I'd like to take you out to dinner sometime, if that's alright?"

"Tomorrow, seven o'clock. I'm staying in the Wayne Hotel. I'm sure you'll be able to find me." And with that, she turned and walked away.

Up in her hotel room, Serenity showered and now lay on the bed looking out the large balcony windows up at the stars. Turning into Sailor Cosmos had brought back many memories for her. She missed the stars. She had traveled to many worlds in her past.

Her last battle, and the birth of Sailor Cosmos had happened when she was only 25. Tokyo was safe, and she tried to live a normal life, more or less burying herself in her work. As time passed she began to realize that she wasn't aging, she looked the same as she had that fateful night. She stayed in Tokyo as long as she dared, then moved to America for a decade, but got bored.

As Sailor Cosmos, she was able to breathe in space, and she decided to leave her beloved planet. She sold all her belongings and placed all her money into a savings bond, finally taking to the blackness of space. She drifted through the solar system, silently apologizing to each planet for the loss of their princess, and when she passed Pluto, she fell into a deep sleep and simply drifted.

She only awoke when she had gotten pulled into the gravity of a planet of warriors. Though they were very skeptical of her at first, they soon welcomed her in. There she learned how to fly and fight in her "civilian" form. They had even taught her how to shoot energy from her hands and transport herself from one place to another. She learned many things there, including how to love again. Their lifespan was long, and she stayed there for over 100 years until she was asked to mate with the prince who had taught her so much. She refused, and once again took to the stars.

She next found a small and quiet planet, full of a very artistic race. Intrigued with her long golden hair; as they had none themselves; she had learned a variety of ways to wear her hair. Here she picked up painting, and they helped her perfect her talent. She was content there, and only left because something had tripped her alarms set around her solar system. She bade the people there farewell and transported herself back to planet Earth.

The source of the alarm had been a small baby sent from a destroyed planet. It was then she decided to stay. The world had become an awful and corrupted place, more than when she left.

She accessed her savings bond only to find she was now quite wealthy. She finally settled in a small house in the country. Painting had become a hobby for her, and she began to paint many things, and soon became famous for her work.

A scream below in the alley pulled Serenity out of her thoughts. She sighed, willing herself to ignore it, but when another scream rang in her ears she stood. She had discovered during her many years that she could choose which form of Sailor Moon she wanted to become simply by thinking about it. Knowing this would be easy she transformed into her first form of Sailor Moon. She looked in the mirror; it was strange to see. The last time she had worn this uniform she had been a child, merely 14 years old.

Another cry for help pulled her away from the mirror. Looking into the alley below she saw a young girl being chased by a man. Sailor Moon shook her head and jumped off the balcony, flying down to the ground in front of the man.

He ran into her, fright on his face and tried to turn around and run. Sailor Moon grabbed his wrist and turned him back toward her roughly. "Where do you think you're going?"

The girl he had been chasing had collapsed on the floor in a fit of tears. Relived that she had been saved.

"Let me go," the man cried.

Sailor Moon took to the sky, dragging the man with her. "Still want me to let you go?" She queried.

He screamed, and grabbed her around the waist.

She quickly flew to the nearest police station and placed him on the ground. "Go turn yourself in," she demanded.

"Ok," he squeaked running into the station.

Thinking of the girl in the alley she transported herself back to the alley. The girl still sat in the alley, still too scared to move.

"Are you alright?" Sailor Moon asked her.

"Yes, I think so," she replied. "Thank you so much! I was so scared!"

Sailor Moon walked up to the girl and offered her a hand. Pulling the girl to her feet she smiled and wiped the girl's tears away with a gloved finger. "Would you like me to take you somewhere?"

"Who are you?" The girl asked, nodding.

Nostalgia took over Serenity as she smiled and simply replied, "I am Sailor Moon, champion of love and justice."

She stayed out after that stopping numerous thefts, attempted rapes, and other crimes. A large group of cops alerted her to a larger crime, leading her to transform into Sailor Cosmos again. Cosmos had all the powers of her scouts, and she often found it easier to simply freeze, or shock her enemies instead of fighting them into submission.

Sensing someone behind her she smiled. "Batman."

"Cosmos," he greeted walking toward her. "You stick out like a sore thumb."

"I've nothing to hide from," she retorted. "What's going on?"

"Long story short, turf war. Civilians have been involved," Batman replied.

"They are the first priority then," Cosmos said.

"I don't need your help," he growled looking at her.

"Well you're getting it." She jumped off the roof and gracefully landed on the ground.

The mission went on without a hitch. Batman and Sailor Cosmos worked together perfectly and dealt with the mobsters easily and quickly.

Sailor Cosmos stood with Batman on the roof once more. "I missed working with a team."

Batman smirked. "You had a team before?"

"A very long time ago." She faced him. "We'll have to do this again." And she disappeared.

Stay tuned for Serenity and Bruce's first date! Please review. If I get enough people liking this story I may expand it!

Gohaun