Disclaimer: I do not own Yu-Gi-Oh! or any components from other anime, manga, or other literary work. I also do not own any songs. I only own the Matsumura family and future OC's. Please enjoy the story.

Long ago, in a time when Earth did not exist - an era in which magic reigned supreme - the first humans lived on a planet called Foreheim. These humans, the Forsir, homo pythonicus, were magical beings that not only manipulated the forces of magic and its energy but also manipulated science as well. They were divided into twelve tribes and lived in twelve different regions, based on their dominant magical abilities.

Those with the sole, and later dominant, ability to control fire were called fire-breathers and lived in the region of Ignis, which lay in the southern part of Foreheim's largest continent. Ignis was a region where volcanoes stood as mountains and clouds were made of white smoke. But although fire reigned, the sky was blue, and the land was still beautiful and unique in its own way. Natives of that region were unharmed by fire and treated it as a living thing.

Those with the ability to control water and ice lived in the region of Ros in the northern part of the largest continent. Ros had two regions within it, a land made for those who mainly controlled liquid water, also called Ros, and Glacies, land of winter. Earth foreseers lived in the mountainous yet fertile region of Terra in the east, where those in tuned with the earth and its treasures, the nature spirits lived with them. In the western region of Zephyr, those with the ability to manipulate the wind used their power to free themselves from the land, even if it was for a short amount of time.

Foreheim also consisted of much smaller continents - which were really just islands - inhabited by the other tribes. Those commanding darkness and shadow lived in Umbra, where any shadow would instantly come to life since that region was a bridge between the material world and the world of the shadows. Their opposites, foreseers of light, lived on the neighboring island of Lumen and were the fastest of the Forsir. Although they had shadows, sometimes they were white, the presence of all colors. Those who manipulated the mind, and most knowledgeable, lived on Sophia, located on the other side of the largest continent. They could open secrets locked deep within a person's mind and, in some cases, heart. The truth could not be hidden from them easily. The only people that truly threatened that ability were the illusionists that lived on Somnium, people who relied on tricks and deception and understood all illusions, even the non-magical ones.

Neighboring them were those in control of time and those in control of space, both living in the two regions of Actum and keeping the space-time continuum in check. It was illegal for anyone to change the world by means of time or space.

Finally, came the last two and possibly the most powerful tribes. The first of the two tribes had the ability to summon otherworldly beings. Spirits, monsters, demons, dragons, you name it. The last tribe was called Arkheim, and they were considered to be the nobles among the Forsir. The reason is that they could possess any ability, whether it was wizardry or alchemy, and even possess multiple. As a result, they were known as the universal magicians. Not only that, but they were also the ruling tribe, living in Ishtar, in the center of the largest continent, with the summoners under the immortal queen Gracia. For a time, there was peace, but like all people of different yet similar backgrounds, there was bound to be conflict.

The first conflict was between fire and water, a dispute in the countryside that erupted into regional conflict. Then came earth and air, shadow and light, truth and deception, and then time and space. The only two groups that didn't fight were the ruling groups. Unfortunately for the people of Foreheim, their conflict would bring about their destruction. Malevolence, a form of dark energy - it shrouded the land and allowed the Deity of Sin Deliora to enter that world. In a futile attempt to fight back, the seers lost their male population and escaped to earth, home to a new group of humans, still struggling to evolve - ones without magic. It was there that both types of humans joined forces under Gracia and somehow managed to repel the darkness, receiving help from Tohka Daysha, the Progenitor Magician, Candlemaker of Souls and Weaver of the Tapestry of Life.

With victory over the evil, Gracia was named queen of earth and a golden age began, in which humans had evolved, gained knowledge, and discovered solutions to impossible problems. But that didn't last long. A traitor by the name of Damion and his allies stormed into the palace, killing the king and princess-candidate. What they wanted was the power to rule - Gracia's power, the principle of domination. To save her people and continue her rule, she destroyed her body and sent her soul into the future to steal her successor's - or manifestation's - body. That manifestation would be called the Temple of Domination, much like her predecessors. However, in her absence, the capital city was burned down and all humans experienced declination, their evolution being undone.

Without the protection of their queen, the foreseers were victims of a genocide that lasted for ages. They lost all their rights and went into hiding to get them back. Some became dogs of the military to earn a few while still being true to themselves. Do you wonder why these people are killed? Fear and greed. The foreseers have covenants with angels and can summon them, though none have had the power to do that yet. They and their mothers also release tons of mana into the air when they are born, causing explosions. As for the part of greed, when seers die they reveal their feathered wings, tipped with gold or jewels. Sometimes, the wings were jewel-encrusted gold. In addition to their wings, they dawned beautiful garments and diadems, and their souls would tell the nearest person his fortune. As you could tell, fear and greed consumed the hearts of men, decreasing the population of the magical humans. Among those deceased are Kotone Matsumura, whose code name is Desiree, and her eldest child Cordelia Matsumura, whose code name is Angel. Angel was killed at the age of 16. Desiree gave birth to Salem, Gracia's successor, who stole the principle of domination and trapped Gracia within her being. Salem's birth was so destructive that Kotone became wanted for birthing her. It became illegal for foreseers to be born and all birth facilities were shut down. Six years after Salem's birth, Kotone and her husband were killed in a house fire two years after Cordelia's death, leaving Salem and her three sisters behind. Although it's not spoken of often, Salem is now being hunted, since as the last foreseer she carries the richest bounty and the best fortune, according to rumor. Salem, real name Tera Matsumura, clan Arkheim, currently lives in Domino City, attending high school with her twin sister and the sister's friends. However, she has not forgotten and neither has the spirit of the Millennium Armlet. It's impossible to forget what the sapiens have done.

Unknown's POV

A flash of light. Fire. A rotting corpse. Tera. Its dead eyes unbelievably identical to hers. The destruction of a soul. A merge. Tera. Divine punishment. Tera. An angelic figure. TERA. DESTRUCTION.

Awakening from her terrible nightmare, a girl with long black hair and gentle midnight blue eyes fell out of bed, tumbling on the small set of stairs at the foot of it before lying on her stomach. In response to the pain, she uttered a groan.

"These nightmares don't know how to leave me alone." Lazily, she got up and walked towards the window and the balcony. From there she could see three gravestones, neatly arranged and carved. One for her sister, one for her mother, and one for her father, the greatest victim of the three.

The girl sighed as she looked at them, "Of course they don't leave me alone. How can they when their sources are graves?" She touched the lower part of her left breast.

"Well, graves and a scar." Her thoughts were interrupted when she heard a light knock on her door. Opening the door, a young woman with blonde hair stood at the entrance. In a graceful way, the woman spoke, "Pardon me, Miss Tera, but your sisters are wondering if you will join them in the larger bath or bathe in your own room."

Not wanting to be alone with her thoughts, Tera replied in a barely audible voice, "T-the larger bath..." She lowered her head. "Um, will you please accompany me there, Francine?"

The woman, now known as Francine, smiled at the girl's shyness. "But of course, Miss. Right this way." And so Tera went to the bath, accompanied by one of the housemaids.

...

Tera scrubbed her arms softly while her twin sister Delilah scrubbed her back. Delilah was identical to Tera in almost every way, appearance wise. Both Tera and Delilah had large chests but had the heights of middle school students (152 cm; 4 feet 11 inches). Their sizes were B95/W55/H79 and both had fairly light skin. The only noticeable difference between them was the color of their hair. While Tera's hair was black, Delilah's hair was white, and as for their personalities, the difference could easily be seen. Although both are sweet girls and polite (mainly Tera), Tera is very shy and, at times, clumsy. She has a quiet and gentle nature and isn't quick to lose temper or raise her voice. But she gets startled easily and doesn't try to make friends, preferring to be with her family.

In contrast, Delilah is a confident and outgoing girl. She is also very tough and unafraid to get physical if necessary. She is always playing bodyguard for her twin, and due to her ability to reach out, she belongs to a group of friends at school. She constantly tries to get Tera to be a part of that group, using her passion for dueling to get her closer to one of them.

"So the concert's in three days?" Delilah inquired to her older sister, Veronica. The older girl replied, "Mm-hmm, in three days."

"Rini and Ringo are going to be so excited," the younger sister said. "It's a good thing I told Rini to bathe in her own bath."

Her sisters agreed. Then turning to her younger sister, Tera asked, "Ena, have you discovered the location of the other four Millennium Items?"

Ena looked in her eyes and saw the seriousness in them. "Not yet," she answered, "but I think I'm on the right track."

Ena then smiled and stuck her tongue out. "Don't worry, sis. I'll make sure you get the remaining seven Millennium Items and with them you can find the Ark."

Delilah and Veronica smiled. Soon Tera began smiling too. "Okay." Tera looked in the mirror in front of her and lifted up her left breast, revealing a lightly-colored scar. It's only a matter of time, she thought.

While getting dressed in her room, Tera looked into the mirror again and revealed her scar before sighing and continuing with her business. After getting dressed and putting her hair in a semi-ponytail, Tera adorned her Millennium Armlet, a gift from her aunt and the start of her hunt for the others. She was then escorted to the car and driven to school alongside Delilah and the youngest siblings, Rini and Ringo. Strapped to her thigh was her deck, safely secured in her deck holder, and in her arms was her school bag.

At school...

Delilah stood near a girl with brown, shoulder-length hair and blue eyes. Her name was Tea Gardner, and next to her was a boy who had brown with a large portion spiking out to the front and brown eyes. His name was Tristan, and those two, along with the two playing Duel Monsters, were Delilah's friends. As for Tera, she sat at a desk with her back to one of the duelists, the boy with the dirty-blonde hair and brown eyes. In her ears, she had a pair of white earbuds and was listening to the idol group Winged D-E-T. While listening to the music, she was also reading a manga, one that she secretly wrote herself, in order to see what mistakes she needed to correct.

Across from the boy with dirty-blonde hair was a short boy with amethyst eyes and out-of-the-ordinary, spikey, tri-colored hair. That boy, Yugi Muto, was calling out, "Hey, Joey! Earth to Joey!" As in Joey Wheeler. "Hey, are you in there?" Yugi asked. "It's your turn."

After that, Tera proceeded to tune them out. They weren't her friends so it didn't matter. She was only near them because her sister was there. She muttered things under her breath like, "Oh no. I made Brandi totally out of character," or, "I did a pretty good job on this part." Before she knew it, someone was gently nudging her shoulder, slightly startling her. When Tera turned around, she was met with Tea's face.

Tea smiled. "Sorry to bother you, class rep," she began, "but why don't you show Joey how it's done. I hear that you're a pretty great duelist." Tera quietly stumbled to politely say no and go back to her reading.

"She is." The student council president placed a hand on her twin sister's shoulder. "Unlike our dear friend Joey, she doesn't stink," giving a cheeky grin to the blonde that was met with a glare.

"No, you did fine, Joey," Yugi assured. "I just have better cards. See, my grandpa owns a game shop." Tera's ribbon fluttered a bit at the mention of a game shop. The Kame Game, she thought. "I get all my best cards from him."

This made Joey enthusiastic as he wanted to go. Tera wanted to go too, so she had Delilah speak for her since she could be understood better. Yugi found that kinda cute.

"Okay," he said. "Maybe I can even get my grandpa to show us this super-rare card he's got." Tera could barely contain her excitement. Out of all the things she was passionate about, she was probably most passionate about games, particularly Duel Monsters.

Kame Game...

"Grandpa?" Yugi called. "I'm home!" Tera wasted no time in looking for new cards for her deck. Delilah went to the back to greet their aunt Mona who helped out Yugi's grandfather. "I see you've brought company," Mr. Muto said.

"Gramps, could you show my friends your awesome, super-rare card?" His question momentarily grabbed Tera's attention. The possibility of seeing a rare card lured Tera to the store counter. She took out a book filled with images of all sorts of Duel Monsters cards. Excitement began to fill her as she wondered what card it would be and if it was in her card catalog.

"Rare card? My special rare card?" Gramps inquired. He stood there in thought for a moment. Due to Joey and Yugi's begging and Tera's somewhat pleading eyes, he agreed, taking out a neatly polished box. "Ready? Here it is. The Blue-Eyes White Dragon." he said. "This card is so rare and powerful that I never let it leave my hands."

"Gorgeous," Tera breathed.

As if the universe were teasing Mr. Muto, Tristan took the card from without much effort. "Doesn't look all that special to me."

Mr. Muto quickly snatched back the card. "This card is priceless," he explained. "There are only four in the entire world," he continued to cuddle the card.

That didn't seem to stop Joey, though, who said, "Speaking of priceless, I'm ready to trade!" Tera couldn't help but give him a strange look. I honestly doubt that he's willing to trade.

"Not for this card!" Mr. Muto said, moving the card farther away from Yugi and company. Joey then took it back in favor of seeing other cards. In that moment, Delilah and Mona returned from the back and the bell on the door rang.

The person standing in the doorway was none other than Seto Kaiba. In the dueling world, he could've easily been considered one of Tera's biggest rivals, not that anyone other than the Matsumura family knew that. Shy Tera tried her best not to look at him while Delilah glared at him. Both were still offended after Kaiba publicly refused to duel Tera's duelist alter ego. Why is he here?/Isn't he too good for this place? Tera and Delilah wondered.

Mr. Muto greeted him like he would any other customer. "Hello. Can I help you?" he asked. Kaiba replied, "If you can't, it certainly wouldn't surprise me."

Everyone else looked on in shock until Mona gained her composure, smiling, "Well, hello, Seto. What brings you here this lovely afternoon?" It amazed me how she was able to remain polite, but I'm glad she did.

"I'm here to see the card,"he said, walking up to them. "Hey, are you into Duel Monsters, too?" Joey asked. "This is perfect. Maybe we could all duel together sometime."

"Me duel you? I would have more of a challenge playing solitaire." That succeeded in provoking Joey. "I am the number one ranked duelist in the country, and the favorite to win the Duel Monsters Championship. You wouldn't last two minutes in a duel against me."

Yep, Joey was definitely provoked. "How about we settle this with fists then?" he said. If Delilah and Yugi hadn't stopped them, Joey would've probably made it physical.

Delilah spoke, "Gentlemen, this is not the time and place." Yugi agreed with her. However, Kaiba noticed the Blue-Eyes White Dragon resting neatly in its case on the table and pushed the others aside. He was astonished. "Can it be? The Blue-Eyes White Dragon, in a dump like this?"

Mr. Muto closed the case and moved it away from Kaiba, saying, "Well, enough window shopping. Is there anything else I can help you with?"

In response, Kaiba brought his silver briefcase down on the counter and opened it, turning it so Mr. Muto could all the Duel Monsters cards inside. "Listen to me, old man," he said. "Give me your Blue-Eyes White Dragon card, and I'll trade you all of these." Cards galore, enough to grab Tera's attention and make her eyes pop out. One thing was certain: Tera was in love with the game.

The others gasped at the sight. Mr. Muto just smiled. "Ah, nice, but no thanks." His response shocked everyone.

"Fine," Kaiba said, "if you won't trade, maybe you'll sell it. Name your price. I can pay anything you ask."

"I'm sure you could," Mr. Muto replied, "but this card is worth more to me than you could ever offer." He explained, "Not because of its power, or because it's so rare, but because of what it means to me. This card was given to me by a dear friend - " Mona smiled because she knew who his friend was - "and so I treasure this card as I do that friend, so parting with it is completely out of the question."

Tera smiled at the old man's sense of loyalty, but Kaiba seemed shocked by this. It was hard for a rich person to hear the word 'no.' Tera and her family were rich, so she could imagine, even though she had been refused before.

"You'd feel the same even if it were a common card, right, Grandpa?" Yugi asked. "Exactly," Mr. Muto answered. "You see, this precious card has bonded with my heart."

"Fine, I've had enough of this nonsense," Kaiba said before walking away. "Senile old fool," he muttered.

After he left, Mona sighed, pinching the bridge of her nose. "I'm sorry about that, you guys." Why was she sorry? "Seto can be... well..."

"A pompous, rude, obnoxious jerk?" Delilah suggested. That earned her a smack on the head. She yelped in response. "Now, now," Mona said, "there's a chance that he could become your brother-in-law. You really need to learn how to get along."

"Brother-in-law? That guy?" Joey and Tristan shouted. "Are you serious?" Tea asked.

Mona nodded. "Mm-hmm. You see, Veronica and Seto are business partners. Since MuraTech Industries is the most influential and powerful conglomerate in the world, it'll be good for KaibaCorp. But Veronica and Kaiba's relationship is somewhat personal. They were even arranged to be married at some point."

That shocked Delilah's friends. "Luckily, for both of them," Mona continued, "the girls' father got some common sense and broke off the arrangement. Seto was okay with it because he wanted to win her heart first. If you think about it, it was kind of romantic."

"Romantic my ass," Delilah muttered.

"So," Joey began, "just so we're clear, you're not the sister getting married, right?" That caused Mona to blush and put a hand on her cheek. Though it's true, Mona could've easily been mistaken as one of the Matsumura sisters. She was only seven years older than Tera and Delilah, and, in fact, she was nine years younger than the late eldest.

Joey's compliment prompted Delilah to pinch his back extremely hard. "I'd appreciate it if you didn't flirt with my aunt, Joseph. Well, it's time for us to go." She headed towards the door.

"Leaving so soon?" Yugi asked. "Remember, Yugi. Mona is the manager for Winged D-E-T and Veronica's company produces their music. If our aunt's not there to help them, then Tera and I take over. Let's go, sis." However, Tera didn't reply to her. "Uh, sis?"

Tera was holding two unopened packs, each containing Duel Monsters cards. She was currently indecisive about which one to buy. The white-haired twin mentally slapped herself for not watching her.

"Hey," Tera said to no one in particular, "which one do you think would have the better cards?"

"Hey, Yin. Isn't there a sale tonight on merch for that anime you like? Mirage something?" That grabbed Tera's attention, who knew that it was a hidden threat and settled on buying both packs, running out the door to the waiting limousine without paying.

"Three," Delilah said.

"Two," continued Mona.

"One," finished Mr. Muto.

Tera came running back, apologizing for not paying. She placed a handful of money on the counter and ran into the door on her way out again.

Delilah sighed, "What am I going to do with her?" She turned to Mr. Muto. "There's your best customer. Goodbye, guys."

She left the store, leaving Yugi and the others behind. However, Tea soon realized that Tera left her card catalog. "Isn't that the class rep's book?"

"Oh, you're right," Yugi said. "I should probably get this to her before they drive off." He took the book and headed out of the store. Fortunately, for him the car had not left yet. In fact, Tera realized that she didn't have the book with her and was climbing over Delilah to get out. It was then that she came face to face with Yugi once she got out.

The boy with spikey hair blushed at the fact that they were in close proximity. Tera blushed lightly as well.

"Um," he said, "you left your book back at the store. I was hoping that I catch up with you before you left so I could return it." He looked down in embarrassment. It was hard to lock eyes with Tera. The way she looked at him was really cute, in his opinion.

As for Tera, her cheeks were a deep red. As she took back her book, Tera struggled to thank him. "U-um, t-t-thanks, Yugi - " Her voice grew quieter - "I really appreciate it." As soon as the two locked eyes, Tera immediately backed away and climbed into the car.

"Well, Igottogothankssosomuch. Bye!" As the car drove away, Yugi smiled slightly, "Bye, class rep, miss pres," and inside the car, Delilah was making fun of her sister and her shyness.

Matsumura house, late at night...

Tera, unlike her sisters, was inside her study going through a book with an intricate, gold design. Around her were shelves filled to the brim with books, their titles revealing that they had something to do with magic. Statues of women lined up the walls and in the very back of the study was a golden box.

"Show me the Millennium Puzzle," she said to the book. It obeyed her order and showed an image of Yugi with the item. Tera rubbed her head in frustration. "Aah! I was so close to it. I could've easily used my magic to snatch it!" She closed the book with a slam before placing her head on the table and sighing. "But if I did, my magical signature could've been traced. Then..."

Tera

"At this rate, I'll never find get the other seven and I'll never find the Ark of the Covenant. If I can't find it, then there's no way to bring them back." She gripped her Millennium Armlet and then Yugi filled her thoughts, causing her to blush. She yelled in frustration, "I'm not even friends with the guy and I'm thinking about him! Why is this happening to me?!"

Well, there you have it. Chapter one of Sentient Energy, the rewrite for Unknown Entity. I hope you enjoyed reading it and thank you very much.

TheElatedDeity