Yui's sister

What is that

Yui p.o.v
I look around the table. Someone is missing, but who? I think with a frown. I'm pretty sure everyone is here, but I'm also entirely sure that somebody is missing. I look around the table again and almost groan. Who is it?
" ~fufu~ You haven't eating very much, Little Bitch." Whispers a voice in my ear. I quickly turn my head to the side. It's Laito.
" You need to eat properly or you could become anemic." He continues with a smirk. His eyes narrows. Help!
" Would you like me to feed you?" He says softly. I look at him stiffened. What do I do? What do I do? I think panicked.
" Laito." Says an ice cold voice. It's Reiji. He looks at us with a disapproval frown.
" It's bad manners to get to your feet during a meal." He says calmly. Laito sighs and turns around.
" We'll continue this later, Little Bitch." He smiles creepy. I almost shudder. Where are you Seiji? And what did you mean in your diary? I need you help. I smile sadly.
Suddenly Shu stands up with an irritated look on his face.
" Mr. Shu?" I ask with surprise. He sighs and says:" This is a pain." With quick steps he disappears into the shadows
" That deadbeat." Says Reiji with disgust laced in his voice. I look at him in surprise. Why does he hate Shu so much?
" Nothing good can come of anyone who grows up spoiled rotten." He continues calmly, but I can hear he's irritated. I want to open my mouth, but choose not to. How did I end up here?
" Teddy, what would you like to eat next?" Asks Kanato towards his teddy bear.
" Let's have a banana snowball." He smiles creepy and begins to crack the cookies with a fork. A crazy look appears on his face and I almost shudder. Why do you that? I look at Reiji. Why doesn't he say anything?
" He won't even make the effort to attend our monthly dinner party." He says. It's quiet for a few minutes.
" That will be all today." He says suddenly. I almost jump out off my chair.
" What?" I ask dumbly. Okay, I can go. I hope then I can find who missed dinner. Or is it breakfast? I don't know. I slowly get up from my chair.
" One moment." Says Reiji. Is he talking to me? I turn towards him.
" Your table manners are deplorable, just like Nozomi's. So one of these days I will take you two aside and discipline you thoroughly. Understood?" He says finally.
" Yes, sir." I say quiet. Why can't I be like Nozomi. I think with a clenched jaw. She's sassy, smart, badass and beautiful. Why? But apparently she was the person I missed. I'm going to look for her. With slow steps I walk upstairs towards Nozomi's room. What room does she have actually? I'm going to guess. I stand still in front of a dark wooden door. I think this room is hers. My hand float above the handle. I bite my lip and gently push the handle down. If someone is in here and it's not Nozomi...I shudder. I push the door open. It's pitch dark. Nozomi is so going to be mad at me. I think with a frown. I can vaguely see the contours of a bed and a closet in the corner.
" Nozomi?" I say with a irritated face. I'm done with this. Why isn't she answering? I walk to the bed.
" Nozomi." It's quiet. I take a few steps. Just when I want to say her name.
" Nozo-"
Bam! I fall hard on my face.
" Oooh." I groan. What was that? Okay where is the light? I think and begin to crawl around. My fingers touch an object. I probably fell over that. I scan the object with my hands. If I have to guess, I think it's a suitcase. Suddenly my hands touch something. I pull them back with a jerk. My heart is thumping hard. What was that?! I start to feel again with trembling hands. It is a small handbag. I conclude with a sigh of relief. It was nothing. Wait...It's locked, but why is it locked? Maybe the key is somewhere here. I get up quickly and start searching for the light switch. Where is that stupid thing?! I can finally have Nozomi's secrets! Aha there! The lights go on with a quick press. I stand still for a moment with blinking eyes. And now...I turn around. The small bag lies there innocently. I smile and begin walking towards the bag.
" What are you doing here?" Snaps a cold voice. I stop in my tracks. It's Nozomi! Help! I slowly turn around again. She's standing in the doorway. Her face is unreadable. It's like her eyes are glowing like a predator. I almost shudder. Maybe this was a bad idea? She steps forward.
" I will ask again since you're not going to answer the first question: What are you doing here?" She says with a sharper voice. I flinch softly.
" Ah-I-uh-" I stumble with my words. She takes a step again.
" Ah-I-uh? Which language is that? I can only speak English and Japans, so please speak a language that I can understand." She says calmly. I stand there dumbfounded. What can I say? What can I say?
" Please pick your jaw up from the ground and go away, because I don't want to deal with intruders." She says, suddenly with a cold voice again. I swallow slowly. I walk out of the room with slow steps around her. Is that the Nozomi I know?! When did she become so scary and...And menacing? I look forwards me and see that Shadow is looking at me. She shrugs and walks around towards Nozomi. I turn around slowly. With a last glance I see Nozomi taking a small plastic bag from the handbag. There is something white in it. Are those....?