Her memory starts when she's 13. Once she open her eyes, she's in the hospital. 

'How I end up in the hospital?'

'What happen to me?'

'Why can't I remember a thing?!'

As for the guy, he caused the accident. He felt guilty yet sad that he is forbidden to meet the girl he loved since birth.

'Its all my fault!'

'I hope she's fine'

'I will never forgive myself!!'

How will everything turn when these 2 people meet each other again?

Will the girl forgive the guy who caused her accident?

More importantly, will the 2 of them meet again?

~Kim Ha Hye (you)

-17 years old

- loves 2pm a lot

- had amnesia since 13

~ Jang Wooyoung

- 23 years old

- A member of 2pm

- A forgotten choldhood friend of Ha Hye