Jeon Gu-Won owns his father's large company and is the CEO of his father's company. He is serious, but nevertheless sweet and friendly. But the thing is.. He's a demon, so he practically makes deals with humans and takes their souls to hell after 10 years.. But you didn't know that.

You are also the CEO of Grandma's company. Your grandmother wants you to get married as soon as possible, since you are already 28.

Your grandmother sent you on a blind date.. But you got the wrong restaurant and went to one he's at, thinking he's the one your grandmother mentioned.