You and your brother are chaebol. Your father works in a big company and is the owner and your brother is the CEO of the company. Jeonghan is 3 years older than you, and he has a spoiled girlfriend, he loves her so much not until you found out that his girlfriend is only using him for money, how many times have you told your brother that his girlfriend is just using him for a damn money but he doesn't listen to you.
One day, you are in the company now. You saw his girlfriend kissing another man, you clenched your fist and you took a picture of them, you put your phone in your bag. "I fucking knew it, you're cheating on my brother and just using him for money, i needed to tell this to him." you murmured to yourself and walk away.
After a while, tonight. You went to your brother's office and opened the door "Hey hyun-" you saw them kissing and exploring each others, you gritted your teeth feeling disgusted and composed yourself act like innocent. "Well, well, well, looks like i did interrupted your lovey-dovey, mianhe oppa." you chuckled as you shoot his girlfriend a cold look.