Krystal and seohyun are sisters and luhan and sehun are brothers. Both of their parent decide to get married and they moved into Krystal and seohyun' house 

 Mr. Jung: sehun luhan this is Krystal and seohyun. Krystal is a cold emotionless girl while seohyun is quiet and kind of nerd type but both of them are stubborn and has a dirty mind 

 Krystal glance at her father 

 Mrs. Jung: seohyun Krystal this is sehun and luhan and they both are like you guys emotionless and stubborn but they also has a dirty mind 

 Mr. Jung: so we decide to let sehun live with Krystal and luhan with seohyun in a room

 seohyun: why? 

 Mr. Jung: can be closer to each other 

 krystal: so should I say have more time with auntie?

 Krystal smirk at her father 

 Mr. Jung: yah 

 seohyun: stal lets go 

 luhan,sehun,luhan, and seohyun went up stairs when suddenly Krystal came out again 

 Krystal: but remember to wear because I don't want a little kid running around the house 

 seohyun: JUNG KRYSTAL 

 Krystal: calm down unnie 

  Sehun: you really do have a dirty mind

 Krystal: I'm not the only one 

 Seohyun: go to sleep stal

 Krystal: don't want to

 Krystal sit up from bed and start stretching

 seohyun: don't fall asleep like that, one time I wake up you were in a split and you were sleeping

 Krystal: you need to start stretching too

 seohyun: don't want to,fu*king hurts

  Krystal: you are sehun? 

 Sehun: yeah why? 

 Krystal: I feel like I have seen you some where. AH you were that boy that was making out with girl in the staircase 

 sehun: how you know? You stalk me? 

 Krystal: nope I was just walking when I saw it 

 Krystal then fell down onto the floor when she found out that seohyun has kick her down 

 Krystal: unnie

 seohyun: if you are talking about that then get out of here

 Krystal then stand up on the bed and jump on it well seohyun is trying to kick her off 

 luhan: you have long hair 

 Krystal: she don't like cutting her hair 

 seohyun: it feels weird 

 sehun: how you guys get along? 

 Krystal: we fight everyday but also get along 

A few days of living together making krystal and seohyun fall in love with them and they know it bt they decide to ignore it. One day krystal came home late and when she went to her and sehun's room she saw a girl in sehun's bed , Krystal's heart shatter and she close the door and walk to Amber's house that is only few blocks away.

 seohyun: where is stal?

 Mr. Jung: she haven;t be home all night?!

 seohyun: when i fell asleep she wasn't home and then she call me say she has work to do so she say she will came home late

 Mrs. Jung: have you call her yet?

 seohyun shake her head and take out her phone and call krystal but she didn'y answer her phone

 seohyun: she didn't answer her phone

 Mr. Jung: do you know where she might be?

 seohyun: the beach, vic's house, amber...

 seohyun's eyes widen and run out

 At amber's  house

 amber: unnie what are you doing here?

 seohyun: amber did krystal came here last night?

 amber: she did but before i wake up she lefted

 seohyun: that sehun

 amber: sehun, what happen?

 seohyun: i think krystal saw sehun and naeun

 amber: that's bad

 seohyun's phone then ringed

 krystal: unnie..

 seohyun: stal where are you?

 krystal: calm down unnie i'm at the beach

 seohyun: i will...

 krystal: is fine unnie you don't need to come i just want to relax alittle

 seohyun: ok be careful

 krystal: ok

amber: where is she?

 seohyun: at the beach

 At home

 Mr. Jung: did you find her?

 seohyun: yeah she was at amber's house last nigth and now she's at the beach calm herself down

 Mrs. Jung: did something happen to her?

 seohyun look at sehun and look back at Mrs. Jung

 seohyun: maybe she is tired she just want to rest alittle

 Mr. Jung: ok she got me so worried

 At night

 Seohyun,luhan,and sehun was down stairs waiting for krystal

 seohyun: stal you came home

 krystal: unnie you didn't went to sleep

 seohyun: how can i sleep when my sister is not home? So what you did?

 krystal: i just went for a walk at the beach

 seohyun:why did you go there?

 krystal: maybe is closer to her

 seohyun: stal..

 krystal: is dad asleep?

 seohyun: they fell asleep few minutes ago

 krystal nod

 krystal: i'm going upstairs i need to go to school tomorrow

 seohyun: ok

 The next day

 naeun came over and is eating breakfast with sehun. The truth is that Mrs. Jung don't like naeun and when krystal came down stairs and when she saw naeun she walk straight to the door

 Mr. Jung: you are not eating breakfast?

 krystal: i have work dad

 krystal take out a lollipop and put it in

 Mr. Jung: since when you start eating lollipop?

 krystal: what i can't eat this?

 Mr. Jung: nothing

 seohyun: STAL... oh she is here

 krystal: what you need unnie?

 seohyun: can you help me hand this in to my teacher?

  krystal: hand it in yourself

 naeun: rude

 sehun: i know

 krystal: you know i can hear you guys

 naeun: so what?

 krystal turn to naeun

 krystal: rude? i see that you are more rude

 naun: how?

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