I Hate You Neither - Lucifer, the Fallen Angel

Cho Jiyeon is from a little village, daughter of farmers, so for her studies she lives alone in a cosy apartment. She works in a cafe for helping her parents paying all.
She has two friends -a little brunette, very affective and cheerful, the sweet type, and a taller with a sugar-like skin, dark eyes, most of the dynamic and short-tempered one- and some aquaintances she talks with.

There are popular ones, but she didn't pay attention to them. She's in her own world. But the worst of all bothers her a bit: Kim Jennie. She's very dirsrespectful, dishonest, and a real playgirl bitch. She is gratis nastiness and mockeries in their human form. To be clear, she's everything the girl can't bear.
Even if the students are mostly afraid of her and find her really mean, they admire her beauty. This kind of girls who acts like a princess and everybody let her act that way because she must be true because she's pretty, rich.

Living her earthling paradise -working wasn't a problem-, things were all right for her, Jiyeon hadn't cared as much as nobody bother her.... until Jennie became to pester her. She doesn't really understand nor know why, maybe because of her little difference which is more noticeable than the one of the others.... she just tries to ignore it. She just have to do not push the boundaries if she want to live. The girl is way more powerful than a little demon like that.

Sadly, a demon means nothing compared to the Master of Hell himself, Lucifer. Kim Taehyung, behind the alluring appearance of an angel, hide the dark Satan.