I don't own Sonic the Hedgehog and Cardcaptor Sakura

"Hai, This is a Chaos Emerald that you were told me about" Sakura said before she show it to Sonic. Everyone froze in shock about how did she know about this gem.

"How did you find it? Saki-chan" Sonic asked. Syaoran give him a trademark glare because Sonic called her with her nickname while Syaoran doesn't but Sonic just ignore him

"It just appear on the ground and i just pick it up" Sakura answered

'Shadow must be transported it here' Sonic thought while rubbed his chin

"Ugh Sonic-san, What is the Chaos Emeralds ?" Tomoyo asked him

"The Chaos Emeralds are mystical gemstones of unknown origin and unlimited power. They have existed for generations, and are linked to many ancient races. Alone they can be used to power machinery and unlock special abilities for those who are able to harness their power. If someone collects them all, they will take over the world with the power of the Chaos Emeralds " Sonic explained make everyone except Sakura froze in shock.

"That scary" Meiling shouted

"What if it fall into the wrong hand" Kero asked him

"It can be cause destruction not only the world but also the Universe" Sonic said make everyone gasped in shock

"That horrible, we can't let it fall into the wrong hands" Tomoyo commented.

"Well we will find the Chaos Emeralds in tommorow afternoon" Sonic said as everyone argee, Syaoran seem glare at Sonic but he argee with him. When everyone are walking to go home, Syaoran still followed behind Sakura, Kero and Sonic.

"So This is your false form" Sonic asked Kero as he give him a nod

"Well yes its is, but that brat always call me stuffed toy" Kero said while Sonic look through his arm, he see Syaoran glare at him, he confused

'Why he is glare to me, he must be her boyfriend or something' Sonic thought before he look back at Kero in in false form which remind him about one of his friends, his friends named is Chip

"Sonic-kun, What wrong ?" Sakura asked him

"Oh it nothing, he just remind me of my friend" Sonic answered before he look at Syaoran again but he was gone. Sonic sighed

"So Sonic, who is that robot ?" Kero asked memontied about the robot attacked Sakura, Syaoran and Kero. Sonic frowned when he was mentioned about the robot. He sighed

"He is the copy version of myself, his name is Mecha Sonic" Sonic said

"Mecha Sonic" Kero and Sakira both said in union

"Yeah, he tries to fight me many times in my world" Sonic said

"Why he in this world" Kero asked him again

"Well i will explained it later" Sonic said. Sakura wondered why Sonic is so sad. They finally resch Sakura home.

"It's been a long day since i left this world. Now i return herw the house doesn't change much" Sonic commented Sakura house as Sakura nodded in argeement. Sakura house still the same when Sonic back to this world after 6 years. Sakura knocked the door as Kero hide into her bag. A moment later the door is open, it was her brother Touya Kinomoto.

"Kaiju, why did you go home so late. Did you play with that...S...Sonic !" Touya said froze in shock. Sakura attempt to stomp her brother foot but she realized it Sonic is here, she know what he will do.

"Hey Lizard, Long time no see, you look taller than before" Sonic said as he wave at him before Touya blushed in embrassed while Sakura chuckled as she tries not to laugh

"Hey I thought you said you would stop call me that name" Touya yelled in embrassmed

"What so why you call Saki that nickname is Kaiju ?" Sonic joked

"None of your business, hedgehog" Touya growled as he ignore his question

"Whatever, lizard" Sonic teased Touya which cause his face went like a tomato

"HEY, STOP CALL ME BY THAT NAME !" Touya yelled in embrassment while Sonic sweat dropped and hold his hand defensively while Sakura couldn't hold a laugh as she laughed hard

"Alright, i will stop call you lizard unless you call her Kaiju again" Sonic smirked at him as Sakura chuckled. Touya notice she is laughing

"What are you laughing at" Touya asked her as he glare at her

"No nothing" Sakura as she finally stop laughing. Sonic walk into the house and meet Fujitaka

"Hey Mr Fujitaka" Sonic waved at him

"Sonic! It been a while, where have you been ?" Fujitaka said before he shake Sonic hand

"Go back to my world before i'm visit here again, you look haven't change much since i met you" Sonic said smiled at him.

"And I have seen you get taller than before, Sonic-san" Fujitaka commented as Sonic grinned he remember the good day when he was here as he is playing with Sakura when she was 6

"Sonic-kun, i show you something" Sakura told Sonic

"What is it? Saki-chan" Sonic asked her before she dragged him into her room. Sonic remember that her room was still the same except the plushies are on her closet. Sakura show the golden ring to Sonic which make Sonic froze in shock

"Whoa Saki-chan Is that" Sonic said in shock but Sakura interrupted in

"Hai, This is the ring when you gave it to me before you left this world. It help me got my lost memories" Sakura said smile at him

"Wait you have amnesia" Sonic said as she nodded

"I was had brain damage after i has a car accident, i almost forget you but the golden ring help me got my memories back." Sakura explained cause Sonic got panic

"How...How did you get car accident ?" Sonic said worriedly

"I was trying get a ball in the street, i...i didn't notice it all. A car suddenly hit me from behind. I quickly send to the hospital, the doctor said i have brain damage cause me to have amnesia." Sakura said feeling guilty for make Sonic worried

"You should be careful for that. How can you not pay any attention !!" Sonic said almost yelled in panic before he look down, completely feeling guilty.

"How could i ever take it, if you were gone" Sonic said sadly with a tear in his eyes. Losing his friends make him has mental breakdown, now hearing Sakura almost die from car accident make him suffer further, she is the only thing he has, he doesn't want to lose Sakura. Tears begin to fall down in her eyes

"Gomen nasai Sonic-kun, Gomen...nasai. It's all my fault." Sakura sobbed before she hugged Sonic tightly, who slowly return the hug. She feel sad and guilty for have forgotten him for five years because of the accident make she has amensia.

Kero while inside the bag somehow feel sympathy for Sonic, he has exactly has the same reaction as Sonic when Sakura told him about the accident. They hugged for minute before they broke the hug

"Sonic-kun, i should give this golden ring back to you" She said as she handed to him. Sonic think for a moment before he decided to say

"No Saki-chan. " Sonic refused

"Hoe" Sakura said in surprise

"It's belong to you. This is a gift that i give to you, it can bring some lucky charm fo you, you should keep it, Saki-chan" Sonic smiled as he push her hand with the ring inside her hand gently to her

"Arigato, Sonic-kun" Sakura said happily as she give him one more hug. Kero popped out of her bag.

"So Sonic hedgehog or whatever your name is it, Can you explain to us more about the Chaos Emeralds" Kero asked curiously want to know more about the Chaos Emeralds as Sakura argee

"Well as i said if someone collect all the Chaos Emeralds, they will take over the world right" Sonic said as they argee

"It's also turned the user will gain ultimate power and turned invisible like me. I used the seven Chaos Emeralds to turned into my Super form. I can fly, icrease my speed or give me more strength. I used my Super form to save Saki from Dr Eggman when she was 6" Sonic explained make Kero gasped in shock about Sakura had been kidnapped by someone before he apeared

"Is that true, Sakura-chan. You were kidnapped when you were 6" Kero asked with a bit worried

"Hai, Kero-Chan. Thankfully Sonic-kun saved me from Dr Eggman" Sakura said as she remember that she fall down from the sky after Eggman robot was destroyed by Sonic. Sonic dived down and tried to reach her hand before he caught her and landed safety.

"So you can use the Chaos Emeralds" Kero asked

"Yeah mostly i used it with the positive energy. The Chaos emeralds have their own mystical properties and abilities; these seven emeralds are the servers of Chaos. With all seven of these gems in one's possession they can utilize and harness their awesome powers to transcend into a 'super form' and perform teleportation by warping the reality about themselves and shifting space and time, a power fit for a god. Each emerald is composed of both positive and negative charges thus giving them the ability to levitate in mid-air on their own. As for the Chaos Emeralds If used positively the user shall achieve a 'super form', golden in color. If the negative energies of the Chaos emeralds are drawn upon the user can control Chaos, prefect Chaos; or even achieve a 'dark super form' and act upon their darker wishes. Thus the existence of the Master Emerald is extensile; so that it can be used to counter react the power of the Chaos Emeralds." Sonic explained to Kero make Kero gasped in awe about the Chaos Emeralds, he couldn't believe that seven small gems are more powerful than Clow cards even the Sakura cards.

"So can Sakura or the brat use the Chaos Emeralds ?" Kero asked

"No they can't even you Kero. The Chaos Emeralds energy is too big for them, their body can't handle it much, it will make you shocked by the electricity from the Chaos Emeralds while you tries to use it." Sonic explained

"Is there a way to neutralize it ?" Sakura asked

"The Chaos Emeralds can be neutralize by the Master Emeralds. The Master Emerald endows as a catalyst for the smaller seven Chaos Emeralds or can completely negate their power, thus making the Master Emerald an indefinite source of energy. This Emerald is probably more powerful than any solar system, any galaxy, any star, any supernova, and will always continue to be for it is indestructible. It is also said, or hinted at by the guardian of the Master Emerald that this jewel can project three-dimensional holographic images within itself, thus it is possible that this emerald is in fact a sentient entity, one that can predict its own future and those around it and in turn challenge and change fate in its favor" Sonic said. Sakura then remembered when Sonic said about the negative enrgy and the Dark form

"Wait Sonic-kun you turned Dark super form" Sakura asked him. Sonic frowned as he remember his friends

"Yeah, i was turned Dark when someone hurt my friends." Sonic said sadly. He remembered that he turned Dark to fight against Mecha Sonic, however Mecha Sonic absorb his energy and overpowered him before he turned back to normal.

"Sonic-kun, what wrong. Did something bad happen ?" Sakura asked worriedly

"Nothing Saki-chan, really" Sonic ressuring her. Sakura still feel that Sonic was sad but she doesn't ask more question. At night Sonic sleep in Sakura room as he is sleeping on the floor while Sakura is sleeping on her bed and Kero is sleeping in the box. Sonic is thrashing around on the floor.

In Sonic dream his home planet was destroyed, it's Mecha Sonic who was his enemy. Sonic's running at his full speed. He tries find his friends until

"Knuckles!" Sonic called his friends who was laying down on the ground. Sonic checked his heart, unfortunately he is dead. Sonic look up as he find another dead body lay on the ground

"Amy, Cream!" Sonic called his friends until he found his best friend, Tails.

"TAILS" Sonic yelled as he shaking him. His eyes slowly open

"S..Sonic" He said weakly

"Tails, are you okay" Sonic asked him. Tails grab his hand

"S..Sonic, Me...Mecha Sonic is destroying Mobius. Y...You must stop him before he c...collect the se...ven Chaos Emeralds. If he collect t...hem all the universe will be des...troyed" Tails said before his took his last breath. Sonic shake him again but he show no response.

"Tails, Tails, TAILS" Sonic yelled hopelessly before he fall into the darkness. Sonic then hear someone shouted his name, he then chased the sound. While he running the city is destroyed, the cars and trucks are damaged, dead bodies are everywhere. He finally find the source of the sound, it was Sakura. She is grabbed in the neck by Mecha Sonic as he prepare to finish her.

Not only Tomoeda but also the world are destroyed like his home planet, the fire is everwhere with some explosion. Syaoran, Kero and the white hair angel man are lying on the ground including Tomoyo which her camera is destroyed. Mecha Sonic killed them all just like his friends. Sonic froze in shock about how cruel Mecha Sonic really is. He killed the people heartlessly including the old people and the Children.

"Saki-chan" Sonic yelled as he run toward them as he tries to save her.

"SONIC-KUN" Sakura yelled before Mecha Sonic finished her cause a large explosion. Sonic suddenly wake up from his dream and breath heavily. After few minutes he calm down

'It's just a dream' Sonic thought to himself before he notice Sakura sleep beside him on the floor. Sonic smiled glad it was just a dream. He picked her up and place her on the bed gently before he check the clock, it's 5:45 AM. He left Sakura room and go to the rooftop on the house. He is thinking about his friends

'Tails, Knuckles, Amy, Cream everyone. I promise i will destroy Mecha Sonic to avenge you' Sonic thought as he clenched his fist determined.

"You are Sonic the Hedgehog right" A voice said as Sonic turned to see the one who spoke

"M...Miss Nadeshiko ? I thought you are dead" Sonic gasped in shocked. Nadeshiko smiled at him

"I know, i'm just a spirit. Sonic, listen to me i afraid that Syaoran kid and the Guardian can protect her from Mecha Sonic that he appear in our world" Nadeshiko said

"Wait how did you know that Saki had magical power ?" Sonic asked curiously

"I have followed her since i was dead, i already know that she has magical power and she has her guardians. You two share a very strong bond right" Nadeshiko asked as Sonic nodded.

"Sonic, Mecha Sonic is a big threat to my daughter and her friends even her magic power was no match for him." Nadeshiko warned. A flash image about the nightmare go through his mind

"SONIC-KUN" Sakura yelled called his name before Mecha Sonic shot an energy blast at her cause a large explosion

Sonic shook his head and turned his attention at the spirit.

"Please protect my daughter from him, Sonic. "

"I will protect Sakura and her friends. Since my friends was killed by Mecha Sonic, i won't let him to hurt them" Sonic said clenched his fist determined.

"You Promise ?" Nadeshiko said

Hai, I'm promise" Sonic said

"Arigatou, Sonic the Hedgehog." Nadeshiko said as she smiled warmly at him before she vanished. Sonic watch Nadeshiko vanished before turned to look at the sun. Sonic know as he gonna wake Sakura up. He goes back to Sakura room and see Sakura is still sleeping. He look at the clock again, It's 6:30 AM.

"Saki-chan, Saki-chan time to wake up" Sonic shake her.

"Just 5 minutes, Sonic-kun" Sakura said tiredly. Sonic sighed before he tries again

"Saki-chan, wake up or you gonna be late for summer school." Sonic said again but Sakura still sleep

"Alright you make me have no choice. I'm gonna tickle you" Sonic as he crack his hand before he tickle her make Sakura laugh hard. He tickle at the side of her waist and her neck.

"Ok Stop, stop *laugh* stop. I'm awake, i'm awake" Sakura said while laughing hard. Sonic stopped tickle her and help her up.

"Ohayo Sonic-kun" Sakura said tiredly as she rubbed her eyes

"Ohayo, Saki-chan. Come on you need to eat breakfast and go to school. In the afternoon we will search for the Chaos Emeralds" Sonic said as he brush her hair

"Hai" Sakura tried before Sonic left her room to wait Sakura get dress. Touya is little surprised about Sakura wake early, he is about to call her Kaiju again but he remembered that he made a deal with Sonic that Sonic would stop call him a lizard unless Touya called Sakura a Kaiju. After the school everyone except Meiling are ready to search the Chaos Emeralds, they are in Tomoyo house. Sakura and Syaoran have their new battle suit from Tomoyo

"You two so Kawai when you two have new battle suit, Syaoran-kun, Sakura-chan" Tomoyo commented with her camcoder hung up make them both blushed. Sonic sweat dropped

"Is she always like chan?" Sonic whispered as Saukra simply nodded.

'Phew I'm lucky that i don't have to wear those weird suit' Sonic thought to himself.

"Alright guy, ket find the Chaos Emeralds" Sonic called to everyone before they split up. Tomoyo and Kero follow Sakura while Sonic and Syaoran go alone. Sonic is running around the city to search the Chaos Emeralds, he run up a wall of the building and search the Chaos Emeralds.

"No Chaos Emeralds" Sonic said to himself

Meanwhile with Sakura, Tomoyo and Kero searching the Chaos Emeralds in the Peinguin park. However no Chaos Emeralds in the park. Syaoran li search for the Chaos Emeralds in the forest. He keep searching it until he found a Chaos Emeralds in the bush

"one Chaos Emeralds is got" Syaoran said to himself as he pick up a Chaos Emeralds. Suddenly he hear a sound as he look around. He looped away as someone slashed the trees and cause it collapse. Syaoran glare at the one who slashed the tree

"You ! Mecha Sonic" Syaoran yelled at the figure

"Grr annoying pest, not you again." Mecha Sonic growled before he look at the Chaos Emerald that he held in his hand. Mecha Sonic charge at him and punched him. Syaoran quickly recovered , he pulled out his sword and swing at him. Mecha Sonic flip back away

"Thunder god, answer my call" Syaoran commaded as the lightning bolt appear from his sword. Mecha Sonic jumped away from the lightning bolt, he curled into a ball and hit Syaoran directly. Syaoran quickly got up and kicked Mecha Sonic away. Mecha Sonic use his machine gun to fire at him

"Wind god, answer my call" Syaoran summon a tornado as it blew the bullets away from Syaoran. As the tornado disappeared he get punched in the stomach by Mecha Sonic.

"Chaos Spear" Mecha Sonic fire the enrgy bolt at Syaoran. He create wind barrier to protect himself from the energy bolt

"Smart move but can you handle this" Mecha Sonic said before he charge at him in super speed. Syaoran prepared his sword but suddenly Mecha Sonic teleported behind Syaoran. Syaoran look through his arm see Mecha Sonic appear from behind but he get kicked before he could react

"Darn it, he too fast" Syaoran mumbled and got up with his sword. Mecha Sonic charged at him again. Syaoran summon a large rock and throw at him. He then use his lightning bolt attack Mecha Sonic cause a large explosion. He stay there to make sure he is dead. However Mecha Sonic appear behind him and knee him in his gut before Syaoran could react knocked him away and dropped his sword. Syaoran got up and charged at him. Mecha Sonic attempt to punched him again, he quickly caught his fist and countered with a kick on the side and backed kicked him in the gut. Syaoran grabbed his sword. Mecha Sonic charge at him with super speed. Syaoran summon the lightning bolt again, Mecha Sonic jumped up and fire energy blast at him, Syaoran barely dodge it before Mecha Sonic flying kicked Syaoran make him dropped his sword again. Syaoran barely got up before he ready to fight in his Chinese style as Mecha Sonic power up himself and charge at him.

Meanwhile at the top of the building in Tomoeda. Sonic feel a large Chaos Energy before he spot an explosion in the forest

"Oh no Li, he still in the forest" Sonic shouted as he run toward to the forest with his super speed.

Back to Syaoran and Mecha Sonic as they both fight each other with martial art technique. However Mecha Sonic got upper hand, Syaoran attempt to kick Mecha Sonic but he vanished, he reappear behind him and give him an uppercut to the mid air, he then slam him to the ground dropped a Chaos Emeralds. Mecha Sonic landed and pick a Chaos Emeralds up, he walk toward Syaoran, he pointed his gun to Syaoran head

"Time to end your life in peace, pest" Mecha Sonic said as he prepare to finished him with his energy ball. Syaoran could only look at the energy ball as Mecha Sonic prepare to kill him

"TERIA"

Sonic roundhouse kicked Mecha Sonic in the face knocked him away. Mecha Sonic quickly got up.

"That enough, Mecha Sonic !" Sonic shouted at his clone robot. Syaoran look as his savior thankfully before he fall unconscious.

"Sonic the Hedgehog, we meet again after the fight in Mobius" Mecha Sonic said while Sonic give him an angry look

"Mecha Sonic, give us back the Chaos Emeralds" Sonic shouted. Mecha Sonic laughed evilly

"So why done get it from my hands" Mecha Sonic challenge his enemy. Sonic curled into a ball and dash toward him. Mecha Sonic jumped away and fire the energy blast at him as Sonic barely dodge it. Sonic kicked Mecha Sonic cause him slide across the ground. Sonic attempts to try kick him again but Mecha Sonic warps behind him, punching him and fly to follow him as he fire Chaos Spear and energy blast. Sonic quickly recovered himself dodge the lightning bolt and kicked the energy blast away before he charged at Mecha Sonic. Their collide at the same time, they kicked, punched each other and clashed each other 3 times. Mecha Sonic give Sonic a kick who flew backward but quickly recovered and landed on the side of the tree. Sonic leaped from the tree as Mecha Sonic jumps from the ground. The two richochet many times until Sonic kicked him but Macha Sonic blocked. Luckily his kick is strong enough to knock him backward.

"Chaos Lance"

"Sonic Wind"

The two attack collided each other caused a large explosion. Sonic and Mecha Sonic continue fight each other in light speed cause many shockwave. Mecha Sonic warp behind Sonic to dodge his punch and slam Sonic to the ground. Mecha Sonic fire energy beam at him as Sonic jumped out quickly dodging the blast, he hit his robot clone with Homing attack. Mecha Sonic grabbed his leg and throw him to the tree. Sonic recover himself and attack him again awith Soin dash. Mecha Sonic caught him and kicked him to the ground.

"It seem enough that i toy with you, Sonic. I already has the Chaos Emeralds now i will search them become my Ultimate form" Mecha Sonic rise his chaos emeralds.

"I have not done with you yet, Mecha Sonic" Sonic shouted as he dash toward his enemy.

"Chaos Control" He vanished before Sonic could catch him.

"Dang it, i lost him" Sonic growled as he punched the ground. He dashed toward Syaoran who was unconscious and check his pulse

"He still alive. I need to take him to the hospital" Sonic said to himself as he grabbed the sword and picked Syaoran up in bridal style before he run with his speed of sound.


Mecha Sonic was born as Metal Sonic. He was created by Dr. Eggman, after his previous attempts of destroying Sonic by using robotic doppelgängers of him failed indistinctly. He fought against Sonic countless times and was defeated at every turn, although returning slightly stronger each time and never giving up. One night at the Death Egg, things took a turn for the worse - Metal Sonic fused with three of the previous robot Sonic models (Silver Sonic and Mecha Sonic) and became "Turbo Mecha Sonic". When Dr. Eggman discovered this, he threatened to shut him down for his rebellion. Mecha Sonic went berserk and destroyed the Death Egg, causing it to crash into Mobius. When he emerged from the ruins, the sight of the destruction he'd caused made him realize just how powerful he'd become, triggering a much more evil and bloodthirsty mindset within his artificial intelligence. He started by killingTails, Amy , Knuckles,Cream, Cheese and the majority of the innocent animals ofMobius while in search of the Chaos Emeralds. When he finally defeated Sonic even his Dark Super Form, he took the final Emerald from him and prepared to transform into his ultimate form, butShadow intervened and warped the Emeralds away to Tomoeda in Cardcaptor Sakurawith Chaos Control. Using the energy he had absorbed from the Emeralds before he was interrupted, Mecha Sonic teleported after the Emeralds and ended up in Tomoeda as well. Little did he know that he would be followed anyways. Mecha is a cold, spiteful, sadistic, arrogant and destructive robot with delusions of grandeur and an inherent disregard for all living beings, as highly evidenced by his rampant killing spree with both Mario, Shadow, and Sonic's friends. What makes him pure evil is that in spite of him being a machine, he is aware of the horrors that he has committed, but is too dismissive of them, only calling himself a god rather than what he really is: a mechanical monster. He is irredeemably megalomaniacal, egocentric, and deranged by nature, obsessed with making himself powerful enough to take down Sonic, as is his designated purpose. He can be quite immoral, temperamental, barbarous, merciless, serious, and murderous, as he callously killed a living creature just because it didn't know what a Chaos Emerald was. Either because of his designated job or because of having to deal with Sonic and Shadow quite frequently, he harbors a psychotic, obsessive, and unhealthily vengeful hatred for Sonic, his friends and the Cardcaptor gang, and next to becoming a god, wants nothing more than to kill them so that he can be free to become a god amongst all living things.