you were enjoying watching adventure time but something caught your attention as you heard your sister krystal entered the house 

Ace: Noona are you crying? you asked her while staring at her walking to you

Krystal: Ani.. she said rubbing her eyes 

Ace: Oh noona you and amber hyung fight again? ( ace knew their relationship but amber didn't know ace ) 

-Flashback-

" You knew amber right? " ace  nodded " well she's.... uhmmmm " krys was sweating hard and decided to cut her " you two are in relationship " ace said while wiping her noona sweat before kissing her forehead " you okay with it? " she asked staring at ace eyes  ace nodded and krys hug her little brother tight 

-End- ( Phew that btw ima outta here im ruining the story /hides/)

Krystal nodded and sat beside ace

Ace:Dont worry noona i have a plan 

krystal look at him with a you-sure-its-gonna-work face 

" lets make noona jealous " ace said before smiling evily 

krystal can only nodded her head before hugging him tight