I do NOT own the BC characters and the materials except for my OCs. This is my first time writing a fanfiction story so feedback would be appreciated. I love Buddy Complex and I'm satisfied with the ending of the OVA. But I want to try making a sequel after the OVA since I thought of some ideas for it so here you go. Enjoy the story!

Update: Hey everyone! It's been a long time since I started this story 3 years ago. I'll be making some changes and will release new chapters once a in while. Don't worry, I haven't abandon this story. I was busy these last few years and didn't get to work on it. Hopefully I will continue to write this story as much as possible. Sorry for the inconvenience.

Chapter 1: Back to the Future

Sara: "Satsuma, hurry up! We don't want to be late."

Satsuma: "Yes!"

Year 2018.

Housaki Sara and Housaki Satsuma are siblings. Sara is the older sister and Satsuma is the younger brother. They are going to college to visit their friends, Watase Aoba and Yumihara Hina. They are running to find them and when they did, they were in the research lab.

Hina: "Good morning, Sara, Satsuma. You're early today."

Sara and Satsuma thought they were late. They panted and Sara checked the time on the clock. They were 5 minutes early.

Sara: "I just don't want to missed it. So we came a little early."

Satsuma: "Nee-san, I told you, didn't I? We would wake up early and go but you just had to shop around the corner…"

Sara: "I know, but we still came early, right?"

Aoba: "Looks like you two are really having a good time."

Sara & Satsuma: "No, we're not!"

Aoba chuckled hesitatingly.

Hina: "Anyway, are you two ready?"

Sara and Satsuma: "Yes!"

In the past weeks, Aoba told Sara all about how he went to the future and everything that happened in the future. He also told her about Hina. She was the first one to travel in the future. At first Sara didn't believe him but as he kept telling his story to her, she realized that he was telling the truth. So she decided that she wanted to go to the future.

Aoba: "Okay, are you two ready to go?"

Sara and Satsuma lay down on the cockpits where Hina and Aoba had used to go to the future.

Sara: "Please wait. What if we can't go back to the present?"

Hina: "Don't worry. we are working on a device that will send you back to the present but it will take a while to finish."

Aoba: "Once we finish, we'll come to the future and we can all go back to the present."

Satsuma: "Really? So we just have to wait in the future for you two to come?"

Hina: "That's correct."

Sara: "You promise you'll come, right?"

Aoba: "We promise, so don't worry."

Sara took a deep breath and she's prepared to go.

Sara: "Okay, we're ready."

Satsuma: "You sure about this, Nee-san?"

Sara: "I decided to go so I am going."

Satsuma: "I see."

They both layed down and Aoba and Hina are starting up the machine. It succeeded.

Year 2088.

Sara opened her eyes and realized they were on the ground.

Sara: "Where are we?"

Satsuma woke up.

Sara: "Satsuma, are you okay?"

Satsuma: "Yeah. By the way, what happened here?"

They saw that half of the city is gone. Then they heard someone is coming towards them.

Sara: "?!"

It was a guy, wearing a alliance uniform.

?: "Are you okay? You seem to be lost."

Sara: "Y-Yeah. We don't know where we are. We couldn't remember anything from before."

?: "You two have… amnesia?"

Sara: "We only remember our names but that's it."

?: "I see. Why don't you come with me? I can help you two. By the way, what are your names?"

Sara: "I'm Housaki Sara. This here is my young brother, Housaki Satsuma."

Satsuma: "Hi."

Clay: "It's nice to meet you two, my name is Clay Remming."

Sara: "It's nice to meet you too."

Clay: "Well then, follow me. We will go to my ship, Solitude."

Sara: "Y-Yes! Let's go, Satsuma."

Satsuma: "Yeah."

When they got there, Sara and Satsuma are surprised. They never saw a real ship before.

Satsuma: "Wow!"

Clay: "This is my ship, Solitude."

Sara: "Um, are you the captain of this ship?"

Clay: "Yes. How did you know?"

Sara: "Well… when you said 'my ship', I thought that you are the captain so…"

Clay: "I see. That's correct. I'm the captain of Solitude. A Free Pact Alliance ship."

Satsuma: "Free Pact Alliance?"

Clay: "I guess you're not aware of this. Currently we're in the Free Pact Alliance area. The other area is the Zogilia Republic. I'll explain more about this when we get in my ship."

Sara: "OK."

So Sara and Satsuma followed Clay into the ship. As they were in there, they went to the main control room. There are soldiers and bridge crew members in there.

Clay: "I'm back, everyone. We have two visitors here today."

Everyone looked at Sara and Satsuma. They felt nervous.

Soldier A: "Captain, why do you bring those two here?"

Clay: "That's because they can't remember where they are before so I want to keep these two in company. Everyone, this girl here is Housaki Sara and the boy is Housaki Satsuma. They're siblings. Be nice to them."

Sara: "I-It's nice to meet you."

Satsuma: "Hi everyone. I'm looking forward to it."

Soldier B: "Captain, is this alright? They're just citizens. You can't let them pilot…"

Clay: "Actually, I want to test them. Piloting the valiancer."

Everyone was shocked, including Sara and Satsuma. Clay looked at Sara and Satsuma.

Clay: "Don't worry, I won't force you to pilot the valiancer. I just want to check your emphater to see if you're capable of piloting. I'll explain everything."

Bridge crew member 1: "Captain! That would be wrong! Even though we just finish the war against Zogilia, doesn't mean you can get more pilots! If you are going to explain to them, they wouldn't understand!"

Clay: "Even so, I'm still going to do it. They may be citizens but I can't just leave them there when they don't remember what happened before."

Sara: "Um.."

Clay looked at her.

Sara: "If we were bothering everyone so much then it's ok. You can leave us."

Clay: "No, I can't leave you now. Don't worry about them, I'll make sure you two get along with others. Beside, you have nowhere to go, right?"

Sara: "But…"

Clay: "Like I said, don't worry. Let's talk somewhere privately."

Sara: "O-OK."

They went to the conference room. Clay explained everything.

Clay: "We recently finish the war against Zogilia. The Cygnus's pilot members were the one who defeat the cannon in space that were to destroy the world. That was all planned by this leader of Zogilia army. We don't who it is because we were ordered to stay on Earth to protect the citizens. All I know is that they defeated the leader and the cannon by Cygnus's pilot members. We get to see the action in space by video camera. We saw a singularity appear and two Cygnus's pilot members in their valiancers disappear along with the singularity."

Sara: "That must be Aoba and Hina."

Clay: "Ever since then, Free Pact Alliance and Zogilia Republic have made a truce and we were in peace. But we don't know if there is going to be another battle someday. So, for now, everything's in peace."

Satsuma: "First question, what year is this?"

Clay: "The year now is 2088. Why you asked?"

Satsuma: "I just thought that if I know what year it is now, I might remember something."

Clay: "Did you remember something?"

Satsuma: "No… not yet."

Satsuma: "I-I can't believe this! We travel 70 years to the future?! Wow!."

Sara: "Anyway, what are valiancers? What is emphater?"

Clay: "Technically, it's called coupling valiancer. Valiancer is a mechanic robot that you can pilot when engage in combat against the enemies. To conduct coupling process, you need a buddy to do this using the coupling system that is installed in the valiancer. Using the coupling system, it will give you and your buddy increased capabilities for a limited time. Once it's done, it will take time to recharge and you're back to normal. To pilot the valiancer, you need good brainwaves to couple with the buddy, that is called your emphater. I want to asked you two to become couplers but I want to check your emphater to see if you're capable. If you don't want to, then that's ok. I won't force you to do it."

Sara: "Hmm… so if our emphater is capable of piloting the valiancers, we can pilot them in combat?"

Clay: "That's correct."

Sara: "Alright, I'll do it."

Satsuma: "Nee-san, this is all too sudden. You're ok with this?"

Sara: "I don't have a choice. We have nowhere to go so we should take this opportunity."

Satsuma: "But didn't you hear? When piloting the valiancer, you have to engage in combat."

Sara: "I know that. That's why I want to be a coupler. What about you?"

Satsuma: "Well… if you say so, I'll do it too."

Clay: "I see. Then first, we'll go check your emphater."

They went to the lab to scan them to check their emphater. A scientist check their brainwaves. He was so surprised.

Clay: "Well, Doctor Lamigard?"

Lamigard: "They both have excellent emphater. It's so great that I never seen before."

Clay: "Seriously? Let me see.."

Clay looked at the result and he was very shocked.

Satsuma: "So, did we pass?"

Lamigard: "Yes, you can pilot the valiancers and become couplers."

Satsuma: "T-That's amazing! Hey, Nee-san, we can pilot the valiancers."

Sara: "Yeah. It seems that way."

Lamigard: "It looks like you have two new couplers for your team."

Clay: "I guess so."

Clay looked at Sara.

Clay: "She looks familiar. Where did I seen her before?"

How was this story so far? Remember feedback would be appreciated. Look out for upcoming chapters!