Between two worlds ( A Trunks x OC Story)

Intro

It was a wonderful day. The sky was blue with a big sun letting everyone enjoy the warmth that the sun can give.  Everything was calm and beautiful it was a perfect day to have a party. But not any party, a Bulla's party.  That's right it was Bulla's birthday and everyone was going to getter around and celebrate her.

The party was a big one, everyone was having a good time, playing games, eating delicious food, and having a great conversation with everyone.  Bulla was having a great time with her family and friends were there celebrating her B-Day, but of course, what kid would not like a big party?

Everything was going great until Dende decide to appear at the party. He was looking worried. He was out of breath, it looks like he was having trouble saying what was bothering him. Goku asks Dende what was going on, but Dende just looks more worried about what he needs to say than what was going to happen in the future. 

" I need you guys to listen... and listen well"

" What is going on Denden?" ask Goku

" Just say it already!" Vegeta said irritated by how Dende was so nervous to say something.

Denden took a big breath and said

"I have a revelation and is about a Saiyans. A new Saiyans"

" What are you talking about?"

" That's impossible, Kakaroto and I,  are the only ones besides our children," said Vegeta

" Well, this one is one of you guys, but at the same time almost like your kids," said Dende with a confused expression. trying to choose the correct words. 

" Dende you are not making sense, explain to us whats is going on," Gohan said.

" Well, I have a vision from the past and our near future, I know, I know it is going to be difficult for you guys to believe and understand but..... Goku" Dende said looking at Goku " You have a sister... but she is not from here she is from another universe"

Everyone looks at Dende's surprise from all this and at the same time they yell

" WHAT!!??".

" Yes, In one of my visions I saw that before Goku was born and sent to this earth to destroy it and everything, his father was involved with another woman. That woman was from another planet, this particular planet that this woman was from was the most powerful source of the universe besides the Saiyans, of course," said Denden looking a Vegeta giving him the look of disapproving that someone greater than his clan. " This planet used to control the 4 elements, this specific clan were so strict to be pure, that they did not get involved with others race, they could not afford for some 'other's people to control their powers and used it to manipulated the universe. That could bring the destruction of all that we know."

"  For some reason, your father Goku got involved with one of them, and because of this, a baby was born with the blood of the 4 Elements and Saiyans. Because of this, the baby can be more powerful than anyone we know. More than you Goku."

" This is impossible," said Vegeta angry with all this.

" Vegeta please," Said Bulma putting her hand on his husband's shoulder to try and calm him down.

" Wait. Then how do you know about all this?" Ask Gohan.

" Well, I have been doing my research and in the library of the temple, there is a book that tells all the stories, laws, and customs of that planet. Besides what I saw and the research I made that's what I could gather"  Dende said

" So What happens to the baby?" ask Chi-Chi

" Well, the baby was a girl and Right now she is in danger, Because of who she is someone already knows about her existence."

" Who is after her? And Where is she?"

" And how they know about her before us?" said Chi-chi Goku Wife. 

" Right now I don't have the information who is after her but it is clear that the same creature that is after her was the same that destroy the planet of the elements. And she is not here on this planet, she is in a world where life and time doe not work the same as ours."   

" What do you mean?''

" What I can recall from my vision is that the place where she lives is almost like ours but less with technology, a place where she does not age as fast as you Goku," Denden said

While everyone was processing this information Goku was just serious he was trying to process all this information deeper than the others.

" so..." Goku spoke "I have a little sister? And she is stronger than me?" Goku says with a big smile on his face. thinking of the possibilities to fight with her and see for himself if she is stronger than him. 

'' From all this, You just are asking if she is Stronger than you Really?!" Ask Chi-Chi slapping Goku Shoulder. 

" What?!! I'm just excited, if she is stronger than me, that means that we can train together and have a match  with her."

" Well right know what we have to think of is her safety, so We need to decide how to get to her and bring her here to protect her," Videl said.

" Oh, I know what to do," said Bulma exited. " We can use my time machine, the one that I have been working one from a few months now. It's capable to travel between the different parallel universe, But I would need help to make some finish touches and that be all... Dad can you help me out to finish this." Her father just nods confirming he would help Bulma with her machine.

" very well, when the time machine is ready we are going to need a person to go over there and get her." Gohan said, " so who would volunteer?" 

Everyone was silent, every single one of them was thinking about what to do. But only one person from all the group raises their hand.

" I volunteer," trunk said. Everyone was just looking at him of the choice he made for the sake of Goku and his family. Everyone thought that Goku was going to be the one to Volunteer... but oh boy!  everyone was so wrong.

" Very well Trunks, get ready because this is not going to be an easy task," Dende said.

                    ***

That night in the black, cold room was a girl having a nightmare where a war was taking place and everyone screaming bloody murder and being burn alive. But before anything happen a woman with kind eyes and warm hands grabs the baby and runs from their life trying to protect the baby with her life. The baby could hear the screams of the people running away from danger, seeing how the flames grow and consuming everything that they touch. Not totaling the screams of the people the child cry from all the loud noises.

"Shhh... shh my child,  everything would be okay. Don't worry I would keep you safe" said the woman rocking her child to calm the baby down.

With her heart broken the woman took her baby and put her in a pot to send her far away from danger. " Just remember my child that I love you with all my heart and that I would always be with you, remember this Sky, you are a special child...so protect yourself and be careful that soon we would be together again." said the mother of the child kissing her forehead and sending her baby far away from her planet.

While the pot was flying away from the danger of her planet, the baby saw how a man with a long sword came out of nowhere and stab the women in her chest living her on the floor to wait for her death.