Disclaimer: Gundam Seed/Destiny does not belong to me. This is merely a fanfiction which I hope you readers will like.

Reminders: OC characters shall arise here and would most probably be the main characters. But don't worry because I'll make this awesome.. I hope. And sorry if grammar goes wrong or whatever mistakes happen! Enjoy!

Prologue

Seven years have passed since the events of SEED Destiny. Naturals and Coordinators are now peacefully living with each other. But a few months ago, random attacks have occurred on Earth, mostly in ORB, and no one has yet to know who is responsible for these attacks. They are most certainly known for using Mobile Suit Gundams. And what everyone knows is that they have come to destroy the peace between Naturals and Coordinators.

12:05pm, Saturday, October 12, CE 80 / ORB: Luna Park

It was a sunny afternoon in Luna Park, but not that sunny. The clouds made the weather fair and the beautiful trees made the air breezy. Luna Park was built as a children's park but because of how grand it was, some would see it as a tourist spot. People would take long walks or ride their bicycles. Kids were enjoying themselves in the playground while their parents would idly chat with each other. Some couples would also take time in their dates here. The main attraction in Luna Park would be the 30 foot tall pink robot Haro that was constructed in the center of the park. Every 15 minutes it would open it's mouth for kids to enter and inside was an inflatable bouncer. And you'd hear a squeaky "Haro! Haro!" for every bounce.

"Onii-san, wait up!" A young girl of seven years old said. She had a fair complexion, layered light brown hair, with side swept bangs, that reached a few inches below her shoulders and cute auburn eyes that you'd be instantly mesmerized. She was wearing a floral dress that was just 2 inches above her knees and wore white sandals. She was calling out to her brother who suddenly sprinted toward the ice cream vendor.

Huff huff huff! The girl reached her brother and grabbed his arm.

"You didn't have to run you know."

Her brother turned around and wore a cheeky smile. He had the same complexion as her sister's but with messy darker brown hair and bronze-colored eyes. He was wearing a plain blue shirt, brown knee-length shorts and white sneakers. He seemed to be the same age as hers.

"It was a good thing you know because if I hadn't, I wouldn't have gotten the last two scoops of vanilla ice cream. Our favorite!" He handed out the ice cream cone to her sister who sighed and gave in to the sweet dessert.

They held hand in hand and strolled around the park, enjoying the day they had together and of course their tasty treat. When they both finished eating, they decided to take a seat on a bench nearby the fountain, few meters south of the huge Haro.

The girl looked up the sky then to her brother who was on her left. Her brother saw and turned around to look at her too. They stared.

"Hahahaha!" After a few seconds of their staring contest, they both chuckled. It was a weird-normal-funny thing between them.

"Onii-san, do you know what day it is today?"

"It's October 12 right?"

"Yup. You know what that means right?"

"Uh.. No. I don't have a clue."

The girl glared at her brother and punched him on his forearm.

"Ouch! What was that for? I was kidding!" The boy said. He then smiled at his sister and gave her a big hug. The girl was teary eyed because she thought her only brother forgot what made this day so special, but then appeared a big smile on her face, and hugged her brother back.

"Happy birthday to us! Happy birthday to us! Happy birthday, happy birthday.. Happy birthday to us!" The boy sang repeatedly while they still were in an embraced. His sister started to smile a little and kissed her brother on the cheek. Guess who blushed?

"Happy seventh birthday to us, Seto-onii-san!"

They decided to remain on the bench till the sun would fall. Hand in hand, they both knew how happy they were inside, how happy the other one was. Smiling at each other, staring all of a sudden at each other and laughing. They were happy just being together there and hoped for the best that they would never be apart. Today was a special day and nothing could mess it up.

Until..