Hello and welcome all the people brave enough to give this story a read:D This is my first fanfic so I'm stressed a bit and excited. So excited that I don't really know what to write at the beginning! I just hope that you'll like this story because it was a really nice feeling to write it. Just enjoy reading as I enjoyed writing:D

I yawned again. It's pretty late and waiting makes me really tired. I mean – I have been waiting for… how much? Three? Four hours? For my little, lovely sister of course. I don't know why but for some reasons Tsukasa just had to leave home for a few hours at night. I know it's not even midnight but look – it's Tsukasa… I'm really scared if everything is all right. I have phoned her a few times and she has answered that nothing really happened and she's on a long walk. Maybe I'm overprotective but it didn't make me feel better. I don't know where she is, when she is going to be home and so. And now, here I am – sitting in the window and looking if she comes.

"Kagamin…" I heard Konata's voice right behind me. "C'mon she'll be back in a second… Let's just go to sleep, hm?"

Oh yes, I almost forgot about her. She came to me to sleep because she couldn't go to her other friend's house as she planned and my family had gone to my grandmother, so she could stay here. Tsukasa… Do you have to stress me when I have only her to help me?

"If you're tired, don't be shy and go to sleep," I muttered. "I'll be waiting until she comes."

Konata sighed.

"I'll make some coffee…" she said turning to the kitchen.

I smiled. I admit that I will probably never say 'Konata is helpful' because of my… hmm… pride.

"Thanks," I whispered, looking through the window.

But all I could see was our dark garden with no sign of life. Tree branches were moving slightly and grass in front of house was like sea. I sighed again. Tsukasa… Where are you?

After a while I heard Konata's steps coming closer and closer. She took a sit on my left and gave me one cup of coffee.

"Here," she told me with a high-pitched voice. "But be careful, it's as hot as you," she added with a big smile, looking directly into my eyes. I said 'looking' but she had closed eyes. But I knew she was watching me.

"Stupid," I said, turning my eyes to the garden. Yeah, my face turned red, I can't deny, but God, who's saying things like that?

I blew on my coffee while looking into the night, not really knowing what to do with myself.

Out of the corner of my eye I saw Konata moving back and forth and singing one of Code Geass opening songs quietly. But then I didn't mind it.

I heard something so I did my best in search of its source but it was only a cat.

"Easy, Kagamin," Konata sipped her coffee. "Don't make a fuss 'bout nothing."

"I don't!" I almost screamed. "I don't," I repeated normally. "It's obvious that you're nervous when you care."

"You're like a mother," she said with a childish grin.

"No, I'm not," I said back. "I'm just a good sister. What would you do if Yutaka went somewhere for the whole night?" I asked.

"I think that nothing," she admitted, sipping her drink. "My dad often goes somewhere at night and he always returns."

I facepalmed.

"Konata… there's a big difference between your dad and Yutaka…" I said, rubbing my temple.

Konata shrugged.

"Maybe," she said with her cat-like smile.

We were quiet for a while and then I saw her showing me something outside.

"Isn't that our loss?"

"Where?" I asked nervously, searching the view outside the window.

I heard her 'pfff'.

"Sorry, just kidding," Konata said, avoiding my gaze. One day I'll kill her after one of her stupid jokes like this one. "Will you blow up?"

"I won't! Think before you say something! Stupid Konata," I said with a red face, which I tried to hide.

"I love you too, Kagamin," Konata said, showing me her tongue.

One day I'll have my revenge for all the times she made me feel like a fool. I promise.

I wanted to say something to get back at her but I heard a familiar 'ouch'.

"Tsukasa!" I left my coffee and ran straight to the door and opened it.

My sister was lying in front of me. She had to rise her head to see me and she smiled shyly and a little nervously.

"H-hi sister," she started. Her face expression told me that I looked rather scary but I was really furious, you know.

"Where were you, Tsukasa?" I asked while helping her stand up. I heard Konata coming.

"I-I went to the shop and then o-on a walk," my sister said, avoiding my gaze. "I just lost track of time. I'm sorry sister."

"C'mon, Kagamin, don't stress her," Konata told me. I turned to say that I must know if everything is all right but my friend raised her hand a little and pointed the house with her head.

"Let's go inside, it's a bit cold, isn't it? If you want to say something you can do that in a warm house, hm?"

I nodded reluctantly. This time she was right.

Me and Konata helped Tsukasa dust herself off and we entered the house. I closed the door and my friend helped my little sister to take her jacket off.

"Kagamin, don't scare us," Konata told me as she saw me standing above Tsukasa, watching all the moves my little sister made while taking off her shoes. I turned to the shorter girl. She was waving her hand a little as if she wanted to calm me down. "Just make something hot to drink for Tsu, she should get warm," she added, giving me a strange look.

I tried to look calm and shrug to show that I'm composed, but all I did was grinding out "As you wish".

So I went to the kitchen and grabbed the kettle to boil some water. I made a quick look at the clock. 23:47. Great. Really. How long she was outside? I noticed her disappearance near 10 p.m. when Konata came but I was in my room and she probably had gone much earlier. Tsukasa, what have you been doing for such a long time?

I left the kitchen and went to the living room where the girls were. Konata lit up the lights so I could see Tsukasa sitting in a big armchair with her legs curled up. She wrapped her arms around them, hiding her own face.

"So?" I asked, walking into the room.

Tsukasa raised her head and gave me an unsure smile.

"I'm sorry sister," she said. "I just wanted to drink some cola, but we didn't have any. And as I bought what I needed I started thinking and didn't notice your calls."

I sighed.

"And that took you a few hours?"

"I know that sounds stupid," her face reddened in embarrassment. "But yes."

I sighed again. It sounded like a bad excuse, but I trust my sister so this time I accepted that.

"Tsukasa…" I rubbed my temple again. "Don't do things like that… I was really worried about you, especially since we're alone in the house and you vanish without a single word."

"I'm sorry," she said, hiding her face in arms again.

There was a moment of silence, but the whistle of the kettle broke it.

"I'll be in a second," I said, rushing to the kitchen. In the middle of the night all noises were even more annoying for me.

I grabbed Tsukasa's cup and put some tea in, pouring boiling water. I added some sugar and got back to the living room. My sister looked more relaxed.

"Thanks sister," she said a little nervously.

I wanted to show her that I'm not angry at her anymore and I gave her my best smile. She heaved a sigh of relief. I can't be angry at her for a long time. We're sisters, even twins. I feel really bad when I have to do something that can make her scared or uncomfortable but sometimes I must do that in case it's needed to solve a problem.

I took my cup of coffee and gave Konata's hers and we both sat on a sofa in front of Tsukasa.

"Jeez, Tsukasa, you're such a rebel," my short friend said with her usual smile.

"Me?" Tsukasa looked surprised.

"Yeees. Kagamin wanted to go to the city to find you but I stopped her here. This home had never seen so much action before your running away, " she said, lying her head on my shoulder. I pushed her away.

Tsukasa's face was even more red.

"I'm sorry, sister," was all she said, sipping her tea.

I waved my hand to show that I'm not angry at her anymore.

"Let's just forget about it," I said to cheer her up. "But don't do that ever again, ok?"

"Yes, I promise," Tsukasa said, smiling.

Konata showed me a thumb up as if it was her who solved that problem.

We were sitting in silence. I heard the clock's ticking.

"Konata, why did you come here?" Tsukasa asked. "I don't mean that I don't want you to be here, but…" she added, waving her hands in front of herself and becoming red on her face.

"Ok, ok, ok," Konata waved her hand and stretched. "I know what you mean. I was about to stay in my other friend's house but she had to go to Osaka because of family problems," she explained. "And Kagami let me stay here, because my dad left the house and I didn't have keys."

Tsukasa nodded.

And there came another moment of silence! The atmosphere was heavy but I didn't really know why. Konata laid her head on my shoulder but I was too tired to care about this. A few seconds later I heard her regular breathing and I understood that she fell asleep.

And then, as if she had been waiting for such a moment, my sister asked me a question that awoke me like nothing ever before.

"Sister…" she started.

I raised my head a little and looked at her. She leaned forward.

"Have you ever fallen in love, sister?"

A hard question! What will poor Kagami say? What was doing Tsukasa when she wasn't home? What is exactly this story about!? All the answers will be given in next chapters of "My sister has fallen" (I hope).

Hope you'll like it:D Don't be shy and leave me a response if you like it or not:P All reviews and PM will be nice things.

By the way - I'm not very good in English so if you find any mistakes, tell me and I'll correct them.

Next chapter is gonna be soon - I think I'll post it in a few days... I'm writing this story at nights but I do it very quickly (I think). I hope you'll give next chapters a try too.:D