Krystal and Sehun have dated for 2 years 

 Suzy: yah you nerd go buy us 13 drinks 

 Suzy then went to Sehun and sit on his lap and Sehun put his hand around Suzy. Krystal was hurt and she just put the money down and walk away while putting her hand in her pocket. This is going to change Krystal thought. 

 Suzy: YAH COME BACK 

 Suzy went to Krystal and pull her hair 

 Krystal: what do you want? 

 Suzy got scared of Krystal's icy glare 

 Suzy: I..I told you to go buy us some drink 

 Krystal: go buy it yourself. You have legs and hand what are they used for? Just to flirt with boy is that all you do 

 everyone in the cafeteria laughed at Suzy then Suzy slapped Krystal which made everyone stop. Krystal thought Sehun will help her but he didn't he just sit there watching them. Ok is this what you want Oh Sehun Krystal thought. 

 Krystal: only a will react to my words 

 Krystal then walk away and take out her phone and texted Sehun let's break up. Krystal then call Her unnies 

 Jessica: what happen baby? 

 Krystal: unnie why did Sehun play like that to me?

 Leeteuk: what did he do? 

 Krystal: today Suzy and me got into a fight and Sehun didn't even help me and he say he just used me 

 Seohyun: WHAT?! That boy is going down 

 donghae: princess is ok you got us 

 Krystal is very lucky to have 13 unnies and 13 oppas 

 Tiffany: come on let's make him regret for what he did. We are going to change our baby girl 

 in one night everything of Krystal changed, she isn't nerdy any more she is cold and hot.

 At school 

 Girl: SUPER JUNIOR OPPA 

 everyone started to gather in front of the gate 

 kris: isn't that Krystal's sister Jessica? She is hot 

 Suzy: YAH 

 boy: SNSD SNSD 

 Suzy: who is that? Let's go greet her 

 Suzy and exo approached a girl dress in all black and have blonde hair 

 Suzy: are you new? 

 The girl turn to Suzy and save Sehun and a arm Around her waist 

 ???: well well bae Suzy just one night you forgot about me 

 Suzy: you are....

 The girl take of her sunglasses 

 Krystal: wasn't I the girl who you bullied and Sehun who used me. Is my turn for you to feel my life

 Krystal smirk at them 

 Seohyun: Krystal let's go 

 Krystal:got to go es 

 Suzy: what did you just called me?! I hate you JUNG KRYSTAl 

 Krystal: I hate you too 

 at lunch Suzy was not there with the exo 

 Kai: God Krystal is so hot 

 Sehun: yah 

 Kai: what?you guys already broke up so what? 

 Suho: I think Krystal is a good girl. But I think yesterday you made her ready hate you 

 Sehun: what I never loved her. Remember is the bet

 Eunhyuk: oh so you dated my sister just because of a bet 

luhan: e..Eunhyuk sunbae 

 Seohyun: really are buttheads

 luhan: Seohyun sunbae 

 Seohyun: since you guys call us sunbae how about Krystal she is a sunbae too you know. 

 Kai: n..nae k..Krystal sunbae 

 Krystal: anyways where is that ? 

 Suzy: yah stay away from my Sehun oppa 

 Seohyun: so you are bae Suzy

 suzy: su..sunbae 

 Seohyun: isn't that pretty as I think 

 Suzy: w..wh

 Seohyun: calm down Suzy shi we are just going to give you some lessons and that's it 

 Suzy: w..what lessons sunbae? 

 Seohyun: rule one you have to respect Krystal and call her sunbae since she is your sunbae, rule two you have to follow what we say, rule three don't mess with us got it 

 Suzy: n..nae 

 Krystal: never knew this can be scared like this 

 Suzy: w..what d..

 Krystal: excuse me Suzy shi I'm your sunbae by four years so now go buy us drink and use your own money and if you dare to do something on the drink you will be die got it 

 Suzy: n..nae 

 Suzy then run away 

 Krystal: and now exo should be doing all of my homework and serve us right oppa unnie 

 seohyun: nae 

 Kai: but Krystal sunbae you will get in trouble if we do your homework 

 Krystal: oh you are worried about that, no worry daddy will let me right? 

 Mr.jung: nae baby girl 

 kris: m..Mr. Jung 

 Mr. Jung: so you guys are the boys that my baby girl have been talking about. You guys made a wrong chose. Ok now baby girl daddy will be going to a meeting 

 Krystal: bye daddy 

 D.O: y..you are the daughter of the world biggest company sunbae 

 Krystal: oh sorry mianhae I didn't tell you guys 

 Seohyun: ok stal unnie will go now 

 Krystal: bye unnie and oppa 

 they all walk away 

 Krystal: what are you guys staring at? Get started with the homework 

A few month later 

 taemin: soojung ah can you come to the party? 

 Krystal: why should I? 

 Taemin: there is hot guys

 Krystal: how hot? 

 Taemin: very hot

 Krystal: fine I'm coming and wait for me got it? 

 Taemin: nae 

 taemin then end the call