you just came home from your university, and now you are on the KRX train, otw to your home as you are just sit on there while listening to music with earphone until... you see a boy sitting not far from you continuing to observing you and you can't help but feel confused, and soon... your train finally stops and you quickly get out but, you feel someone is chasing you from behind and...

"h-hey! miss... im sorry for disturb you but... can i talk to you a bit?"

hes that mysterious boy earlier