You and Hyunjin have been dating for a long time. Both of you are already nominated as the richest people in your country itself, and today, is Hyunjin's sister's birthday. You arrived first since Hyunjin had to go to the company first, you kissed his cheek and you headed to the building—like usual. Then, you saw a girl in a pretty dress approaching you with two girls beside her. Then that girl spoke up.

This girl is Hyunjin's sister, of course you know. You smiled but suddenly, Rachel slapped you.

Rachel : "Why are you so close to my brother? Don't you know he already has a girlfriend!?" ,, she says. Maybe... She doesn't know that you are her brother's girlfriend...