Goemul Gongjagi Nareul Anaero Chakgakanda

When Lia Dellis comes across a dying man in need of help, she never could have imagined a curse would drive him to attack her. That's why she hits him over the head with a rock! Feeling guilty, Lia nurses him back to health only to realize that he's Dillian Synaize, the ruthless monster duke. To make matters worse, Dillian has lost all his memories and inexplicably thinks Lia is his wife. Can Lia escape the grasp of this so-called monster before he remembers that she was the one who hit him?

(Source: Tapas)