Intelligent girl; in fact, the smartest in the city. 
Labeled as 'the unimportant'; is actually about to change.
Known as powerless; but that fact is about to be disproven.

Going from the 'nobody', dull, ordinary life into a rich, luxurious, famous life...is it easy? Do you wanna find out?

In the world of Exo, there was a omnipotent ruler - her majesty, the queen. Along with her 12 sons, they hold their beloved land. What happens when there is an upcoming war and they don't have enough powerful fighters? Well, that's where you come in...one of the strongest heroines of all time.

Park Hyunmi (you)

A 20 year old beautiful girl considered to be no one important compared to the rich and powerful kids at her school. Lives on Exo but has no power, yet...Your probably wondering why she goes to such a rich school? Fortunately, her mother's best friend owns the school. She is innocent, positive, happy-go-lucky, independent, responds very fast to fear and can be very outrageous and frightening when angry. Her parents died when she was 9 years old; she lives alone in a small apartment which she managed to get from her hard working job.

Exo

12 gorgeous and powerful princes, known to be invincible to their world. They have been trained for as long as they can remember. Their mother, the queen, has been looking after them and making sure they are top notch powerful in order to save the kingdom in times of need. They all have their individual, unique special powers which makes them stand out even more from the rest of the population that all have common powers.

In no specific order:
D.O - Earth
Baek Hyun - Light
Se Hun - Wind
Lu Han - Telepathy
Kris - Flight
Lay - Healing
(From The Lower Left)
Kai - Teleportation
ChanYeol - Flame
Su Ho - Water
Tao - Time Control
Chen - Lighting
Xiu Min - Frost