Well it appear that people don't really like the twin sister, the word bitch came out quite often so, Here are some explanation,

Just like Kaiba have a reason to be a cold hearted bastard she have reasons to be a bitch, just think of it this way, five years old kids have another way to see the world, what she saw was her mother die because Mokuba was born and what you start thinking at this age is what you'll believe all your life, and you mustn't forget that she was raised by someone you also thought it was Mokuba's fault.

Anyway you don't have to worry; no one can resist Mokuba's charm.

Chapter five : Meet a childhood friend.

Mokuba ran downstairs, he had heard his brother talk with someone but wasn't able to understand it. Anyway all he cared about was to be with his brother.

"I'm ready!" He said throwing himself on his big brother. He looked up and saw the girl behind Kaiba. He recognised her as the same one as the day before. "Hi, I'm Mokuba, who are you?" He asked, smiling.

"I'm Meyli." She replied, like she was going to change her mind about the boy, she hated him more now than ever.

Mokuba looked up at his brother. "Is she your girlfriend?"

"Never in a million years kid, she's just…an old friend."

"Riiiight, just a friend."

"As a matter of fact, yes. She'll be staying here for a while, is that ok with you?"

"Sure."

"Good, now I have to settle her in, you can play in your room until bedtime."

Mokuba hugged him. "Ok, good night." He said to Meyli.

Once the kid left Meyli asked the question that was on her lips. "How long is a while for you?"

"Until I find a way to get rid of you."

"How considerate of you."

"Don't tell me you expected me to let you stay here forever."

"Actually that thought never crossed me mind."

"Good." Kaiba opened a door. "This is your room, and stay away from Mokuba if you know what's best for you."

"Like I had any wishes of being near that brat."

"Careful about what you say, he's much higher than you on my list of priority."

"I don't really care, anyway it's not like I plan to stay here and you don't need to find a place for me, I'll take care of that myself." She said before closing the door.

8888

Kaiba entered his little brother's room, the kid was sitting in his bed and looking at the door, he was waiting for him.

"No Mokuba she's not my girlfriend."

"Why are you letting her stay then?"

Kaiba looked at his supposed to be innocent little brother with a smile. "Look Mokuba, that's something you don't need to worry about, I'm just helping her." Yeah right.

Mokuba sighed, he knew he wasn't going to get any info out of his brother. "Who is she then?"

Kaiba thought about it, if she was going to stay then Mokuba would find out eventually who she was. "She's the girl on the picture that you found."

"Really? But you said she was dead."

"You believed me?"

"Not really. I thought you hated her."

"I don't really hate her Mokuba, we just have a lot of things against each other, we were friends before, but a little after our father died we had a huge argument and stopped talking to each other since then."

"Then why are you letting her stay?"

"I have my reasons Mokuba." Kaiba said.

"In other words, I can ask as much as I want you still won't tell me why because it's none of my concern." The little kid said.

Kaiba nodded but he knew his little brother didn't believed it, he knew it was because he didn't wanted him to know.

"And is there a chance that you two could be friend again?"

"Not is this life time kid."

"If you say so." Mokuba yawned. "Goodnight." Mokuba said as Kaiba closed the door.

"Goodnight Mokuba."

8888

"So you mean she's the girl on the picture."

Mokuba nodded. "And she's staying home with us."

"Why is that?" Joey asked. The two of then where walking around because all the others were busy.

"He don't want to tell me."

"How long will she stay?"

"I don't know."

"And what do you think about all of this?"

"I don't know. It's not like Seto to let someone stay at home with us. I'm sure there's something he's not telling me."

"Well, if Kaiba doesn't want to tell us then there's no way we'll find out. In the meantime, she'll stay here for a little while at least so maybe I'll get my chance, what does she like?"

"I don't know, I didn't had a chance to talk to her." Mokuba said. "I thought you thought she was Seto's Childhood crush?"

"Yeah, who cares? If I got her first then for once I would beat Kaiba at something."

8888

Mokuba opened the door and stepped inside the mansion. "I'm home!" He shouted, then he remembered that Kaiba had a meeting after school and would only arrive for dinner. Well, in that case I should go and meet our guest.

Mokuba ran upstairs and knocked on the door of the guestroom.

"Come in." Meyli said, thinking it was a maid or something, after all why would Kaiba want to see her?"

"Hi Meyli!" Mokuba said with a cheerful voice.

Meyli cursed under her breath and turned around. Mokuba was sitting on the bed, looking at her with a smile. Well, he sure makes himself at home, but then again this is his home. "Is there something you need?" Meyli asked in a voice that she hoped wasn't to harsh, Kaiba did warned her about hurting his little brother.

"Not really, Seto's out until dinner and since you'll probably stay here for a while I thought we could start to know each other."

Meyli turned back to her book, well actually one that she took in Kaiba's study. "Trust me kid I won't stay here for long so you're wasting your time."

Mokuba tried to ignore her cold tone. "I know this may sound impolite but why did Seto let you in?"

"You are right, that's none of your business." She half snapped.

"Well sorry for trying to be nice." Mokuba was insulted.

"No problem." She really should learn to watch her mouth.

Deciding that he didn't wanted to be insulted anymore, Mokuba walked out of the room. Looks like a girl version of Seto… in worst.

8888

For the first time in a long while, ever since Gozaburo died to be exact, diner was totally silent, something that got Kaiba's attention. Usually Mokuba would talk none stop, not that it was bothering him, actually he liked it, but today he was quiet and something told Kaiba that his sister had something to do with it.

"His something wrong Mokuba?"

"No." Mokuba said without even looking at his brother.

Sure. Kaiba continued to eat; he would have a talk with his brother later, when a certain person won't be there.

8888

When Kaiba entered his little brother's room he found him beating the crap out of monster on a videogame, something that he usually do only when he's mad. "So, what's wrong?"

Mokuba was so surprise to hear his brother's voice that he dropped his controller; he hated it when Kaiba sneaked on him like that. "Nothing."

"Is that so? Mokuba you know you can tell me everything."

Mokuba sighed. "There's not really something wrong, I'm just a little upset."

"And doesn't the thing that upset you so much happen to be named Meyli?"

"Kinda, she remain me of you, you have exactly the same arrogant and cold attitude, except that you don't act like that with me."

"Did she hurt you?" Kaiba swore that he would kill her if she ever hurt him, and he intended to.

"No, It's just that I have the feeling she doesn't like me."

"Listen Mokuba, I'm not asking you to be nice with her, she'll just stay for a little while then go and we'll never see her again, as for me I'm going to do as if she wasn't there and I think you should also."

"Why?"

Kaiba sighed. "There are some things that are better left unknown kid."

"Why don't you ever answer my question?" Mokuba asked.

"Because, this is between her and me."

8888

Meyli was lying on her bed while listening music with her cd player, one of her rare belongings, one that she stole. But the loud music didn't prevent her from hearing the door open.

"Ever heard of knocking?"

"It's my house."

"And what would you had done if I was changing myself?"

"Please, if I wanted a girl I would certainly not go for my sister and I have way better things to do then look at you lack of femininity."

"Lack of femininity my ass, you should look at yourself before speaking, you never even had a date with someone."

"That makes us even then."

"What?"

"I made my research."

"Research?"

"I've been teach to always know everything about the people around me."

"That's still no reason to search my past like that."

"This is my house and my rules and I don't regret doing it, I've learn quite a few thing about you."

"Like?" She was afraid to find out just how much he knew.

"Well you lived with our uncle, who strangely happened to be quite healthy for someone with no job, thanks to our father's heritage, you also had quite a few problem with police for thievery, fight, skipping school and drugs, you also ran away three months ago and police are searching for you through all Japan, probably your dear uncle wanting his sweet little niece back so he could continue to live from her heritage."

Meyli stayed silent.

"So, what do you have to say for yourself?"

"Like I have to justify myself to you."

"As a matter of fact you do, that is unless you want to return to live with your uncle."

"Look, it's nothing of your concern so leave me alone."

"It's more of my concern than you think it is, if anyone had found out that I was keeping you here I would have get in trouble and they probably had removed Mokuba's custody from me."

"So what, why do you care for that brat anyway?"

"Watch what you say about him, he's my little brother and I'll always take care of him."

"You're an orphan because of him."

"So what, maybe if he wasn't there we would still have mom around but I would never give him away to have her back, maybe you never realised it but he lost his mother also."

"If he wasn't there we would all be more happy."

"Speak for yourself, I was happy with my life before you came back, it has always been only him and me and I always loved it that way and that's final, I don't have to justified myself to you. Now, you have two choice, I can either ask the police to take you back to your uncle or make an arrangement for you to stay here and don't try lying to me, you don't have anywhere to go, you were just going to wait for an opportunity to steal my money and run away."

"Why would you even let me stay?"

"I have my reasons."

Meyli sighed, it's not like she was going to go back to live with her uncle. "Fine, I'll stay."

"Good, now there'll be some more ruled you'll have to follow." Kaiba walked up to Meyli's bag.

"Hey!" She complained when he started to search through it.

"First of all…" Kaiba held up a little bag with drug in it. "I don't want any of these in my house. Second, you'll start school next week and third of all, I don't care if you don't like Mokuba but you will respect him and I don't want him to feel bad because of you ever again."

"I guess I have no choice."

"If you want to stay here then no and one more thing, I want you to apologize to Mokuba for earlier today."

Meyli sighed. "Fine."

Kaiba turned around and was about to leave when Meyli's voice stopped him.

"Thanks. For letting me stay." Kaiba nodded, that was his way of showing that he accepted her gratitude. "Why are you helping me anyway, you hate me."

Kaiba looked at her over his shoulder. "Who ever said that I hated you?"

8888

And before anyone start asking question about why Kaiba doesn't hate her I'll explain everything, just as Lady blade pointed out it's impossible (Except on extremely rare exception, and I emphasis EXTREMELY) to hate another sibling, I myself have a littler sister ans little brother, both annoying, but no matter what I can't hate them, I even have an older brother, he's a jerk, he stink, he broke everything he find even my rings, he have no consideration toward other, he's obsess with the stupid computer and doesn't even have a life out of his stupid online game, I never even touch him because I found him disgusting, yet, even if I can't say that I love him (I will never reduce myself to say that to him, I have my pride after all) I can't say that I hate him either.