Hwang Haru returns to her home country Korea after spending two years abroad.
What caused her to leave were lifetime scars and traumatic memories left from a horrific incident that occurred in the past.
Upon her return, Haru struggles to continue the normal life she once had, unwilling to socialise with anyone or even step outside her room.
Seeing this, her parents throw her into a boarding house in hopes of healing her heart again.

Whilst being haunted by the ghosts of her past by night, 
Haru is thrown into a new world filled with many fateful encounters, various mishaps and crazy events by day
Allowing her to meet many people that all play a part in changing her in some way
And that included one particular boy,
Jeon Jungkook.