Disclaimer: I don't own anything Naruto.

Summary: What would it be like if Itachi had a twin sister, Koi, who knew the truth about when Itachi supposedly murdered their entire clan? What if he had thought that she had runaway and gone to find her while in fact she was raising Sasuke? When Sasuke finally meets Itachi on one of his missions and comes back with some major injuries, will she decide to tell him the truth or will she keep him in the dark and give Itachi a piece of her mind?

Author's Note: Sorry ahead of time about the time line I haven't read that much of the Naruto series, and I couldn't remember the name of the Hokage before Tsunade. Another sorry for later chapters, there's some pretty graphic scenes. In addition, most of the pairings are undecided as of yet. Though be prepared for some Uchihaest. I also apologize if I totally screw up the Jutsus and Sharingan levels. I'm sorry but I feel since I haven't read that far and don't really know if there is a Sharingan level that can share memories I made up one and it's called the Omoide Sharingan. Oh, and this takes place sometime post-Chunin exam and pre-Sasuke leaving. Again, sorry for my screw ups.

Chapter 2

"Talking"

"Thinking"

Memories

(Dream sequence)

(AN)

She placed her hand on Sasuke's forehead then slid it down the side of his face and cupping his cheek. He leaned his face into her hand and slowly opened his eyes.

"Hey there Otōto. You finally woke up," Koi said with a bright smile.

"How long have I been out?" he asked sulkily as he attempted to sit up.

"I'd say at least three hours at the minimum. You should get as much rest as they'll let you have. You had a few broken ribs, some rather deep wounds, and possibly a concussion. Rest for now, and if you're a good boy, when you get out I'll teach you how to make your Sharingan as strong as mine," Koi said lightly pushing him back to the bed.

"Don't you have to kill your best friend?" Sasuke asked confused.

"Nope! Kakashi's alive and well. Besides, Mangeko is as far as Itachi can go. I've got better," Koi said simply, "I've got to go have a word with Tsunade, and then I'll get myself checked out."

"Aneue, you should get yourself checked out first," Sasuke said.

"But if I end up and have to stay overnight, then I can't yell at Tsunade until tomorrow. Besides, I already promised I would yell at her if whenever you came back you had to go to the hospital. Well, here you are in the hospital in Konoha, so guess what, I'm going to go yell at Tsunade," Koi said with a smile.

She left the room and barely heard Sasuke's exasperated sigh. She made her way to Tsunade's office and walked right in without waiting for the guards to let her in.

"It's alright boys, she's here on business," Tsunade said with a wave to the guards, "Well, go ahead and yell at me."

"I have never in my life seen someone that badly injured in two and a half hours! Sasuke came back with several broken ribs, several deep wounds, and possibly a concussion! Naruto came back with a huge cut down his arm! Kakashi had several cuts and scrapes. Sakura was the lightest injured, though she always is. She had a couple bruises, and maybe a cut or two. They were ambushed by Itachi and Kisame! They are nowhere near that strong! You could have gotten them killed! From now on when you send them on missions, I wish to go along. If I'm out on a mission, send another ANBU. They are not to go anywhere near where the Akatsuki are rumored to be unless accompanied by an ANBU member. A current ANBU member. Even though I trust Kakashi with my life, Naruto, Sakura, and Sasuke aren't me. They need more protection than I do. Sasuke is all the family I have left in this village. I have to know that he's safe at all times. I don't want to be sent on a mission and not be able to concentrate because I'm worried about Sasuke. Can you agree to my terms?" Koi asked.

"I understand your anxiety, but I really don't think we can spare our ANBU members for such menial tasks. Besides, Sasuke will be very put out if he finds out that you requested this," Tsunade said hoping to get out of it.

"I'll explain it to Sasuke tonight. I know he'll understand. Besides, I never said the ANBU member had to be seen," Koi said knowing she had just outsmarted Tsunade.

"You win. I'll do it. Just don't make me regret this," Tsunade said and waved to her in dismissal.

Koi then made her way back to the hospital. After her checkup, she was forced to stay overnight as she suspected. The next morning she was given another checkup and then released. She walked to Sasuke's room and found him still fast asleep. She sat in the chair by his bed and waited for him to wake. When he opened his eyes, he smiled seeing Koi sitting there by him.

"So how bad were you?" he asked sleepily.

"I had several bruised ribs but nothing broken," Koi shrugged.

"You have to teach me how you don't get hurt as bad too," Sasuke asked with a smile.

"I've already explained it. When you get hurt, you gather your chakra to that area and focus on healing it. After a while, it becomes second nature and you can do it as fast as I can. So when are you free to go?" Koi asked.

"I don't know. I'm never awake when the nurses come in. For all I know I could have been out of here yesterday," Sasuke said.

"I'll go fetch a nurse, since I neither work here, nor am I a Medical-nin," Koi said and rushed out of the room.

When she returned, she had a nurse with her. When the nurse was finished, they were informed that they could go home but they both had to hold off on the missions for a couple days rest. However, the nurse said nothing about training so they headed to the dojo in the Uchiha complex. They spent hours training before they took a break for lunch after having nothing for breakfast.

"Aneue, who's stronger? You or Itachi?" Sasuke asked munching on the eggs and sausage wrapped in a weird thin layer of bread called a tortilla that Koi made.

"Well, I can close my mind better and I found a way to advance my Sharingan past his so I guess you could say me. However, he is slightly faster and more muscular than I am. We are matched in every kind of Jutsu, and when we keep our minds open we can see every move, the other is going to make and counter it. That is the bad part about being his twin. I had to learn how to close my mind to him, but even when I learned that, there are just some connections that I can't sever. For instance, if I were to get a major cut like Naruto. Not only would I feel it, but Itachi would too. If he were to get major injuries, no matter how healthy I am I would feel them too and would not be able to function until he was knocked unconscious, and even then I would feel a burning sensation wherever he was wounded until he was healed. There was only one other set of twins that were recorded to be as close as Itachi and I. One of them was accused of treason and killed, leaving the other to feel as though half of their spirit died. He/she later committed suicide," Koi explained.

"So that's why you don't want me to kill Itachi?" Sasuke asked.

"There's more to it than that. I just don't know if you're ready to hear it yet. Besides even if I don't want you to kill Itachi, I still want you to train to be stronger than him," Koi said smiling.

"Why?" Sasuke asked.

"Because, it would really bother him if not only his twin was stronger than him but also his darling little brother. He would be absolutely irate that I taught you how to better your Sharingan before him," Koi said snidely.

"So you want to teach me so we can make Itachi mad?" Sasuke asked and Koi nodded, "I'm in."

They quickly polished off their lunch and started training again. They stopped when they heard a knock on the door to the dojo. Kio went to answer it and found Tsunade and Shizune at the door. She quickly opened the door wider and let them in giving Tsunade and hard look while smiling brightly at Shizune.

"So what can do for you this evening Hokage-sama?" Koi asked politely.

"Aneue, who- oh. Hello Hokage-sama," Sasuke said entering the office of the dojo.

"Hello Sasuke. I came to see you actually. Are you feeling better?" Tsunade asked.

"Yeah, better than ever," Sasuke said being nice in front of his Aneue.

"Well that's good, I'm glad. Honestly if it had been otherwise, we might have been in need of a new Hokage. I see you've already worked up a sweat today," Tsunade commented.

"Just training is all," Sasuke said looking to his Aneue feeling slightly uncomfortable.

"Did you really come here to chat with my little brother or do you have some other reason to be here?" Koi asked slightly annoyed.

"You always sniff out whether or not I'm around for a casual visit. How do you do that?" Tsunade asked.

"Just get to the point," Koi said.

"I have a mission for you Koi," Tsunade said seriously.

"I'm on med leave. I'm not supposed to go on a mission for a few days," Koi said quickly.

"It doesn't start until you're ready. Technically it doesn't start until you finish the first step, but it's all based on how you spend your time as to how fast or slow your mission passes. Although I should expect at least a few years," Tsunade said.

"A few years! Are you insane?" Koi screeched.

"I knew you would react this way," Tsunade said sitting back and waiting for Koi to vent.

"I only just got back after rescuing Team 7 from the Akatsuki, and now as soon as I'm ready you want to send me away! I absolutely will not! There is no way in hell that you'll get me to leave now! Especially not for a few years! It's out of the question!" Koi ranted.

"What's the mission?" Sasuke asked knowing that Koi would just keep going until the question was asked.

(Chapter end)