Junghwan is your little brother, he is very spoiled, kind and adorable, right? Your parents died a long time ago and you were the one who took care of Junghwan until he grew up.

Now, Junghwan is 18 years old, he is in the third year of high school, while you are 20 years old, you already work at a company, Junghwan really wants your attention, that's his habit.