You and Beomgyu were friends in elementary school, from when you were 7 years old, until you turned 12. In order to go to middle school, you had to move from Seoul to Tokyo, so you wouldn't see Beomgyu anymore.

"When you return to Seoul we will get married.", That was what Beomgyu made you promise before your departure, and you two swore to do so. After a few years, now that you were 18, you moved back to Seoul.

You were walking through a park you used to come to when you were a kid, reminiscing about the old days, until you heard the sound of a skateboard around. Before you could react...

"Watch out!!" A deep-voiced, emo-looking boy on his skateboard screamed the moment he had already collided with you, both of you rolled on the ground, until you fell, you on top of this boy. You didn't notice it yet, but this boy was Beomgyu...