It has been a month since Tiffany and Seunghyun broke up. A new school year is starting, and both of them are wishing for a better and brighter one this time. How could they possibly make a brighter one, knowing that the both of them will be sharing a room together? No, not as lovers, this time‥ as classmates.

Dealing with the integers, a positive and a positive expression would make another positive one. In real life, they say two different worlds attract each other well. What if Jiyong meets the girl directly parallel to him? They would definitely attract each other. Or would they?