Hyunjin is your childhood friend, went to the same schools, but when it comes to work, you're estranged.

You are a CEO and Hyunjin is also a CEO, but you are both driven and committed to your jobs. So even though you are doing the same job, you see each other as competitors or rivals and fight amongst yourselves.

Another day at work, you're in your room, working hard. Until you hear a knock on your door, it's Hyunjin.