Sunghoon is your childhood friend, he died due to his non curable disease. 10 years later. You're now a senior high school, you've been playing volleyball, that's why you're neglecting your studies your mom: you're grounded, you, will not play volleyball if your grades are like this low! I expected you will not neglect your studies, we had agreement that you will balance your studies and athletic. if you can't understand your studies, I already hired a tutor, and he will be here tomorrow!