The world is not like before anymore, now humans are not the only ones. Angels rules the world - known as cold beings, merciless, heartless and ready to do everything for their race survival - following their protocol of no emotions developed mind habilities such as telepathy, telekinesis, transportation, etc. To keep with their goverment create The Legion a group of the most powerful ones to rule the earth. On the oher side are demons - known as wild beast because everyone is guide by their shadow - they live amongs humans to protect them.

Everything is in order.    Everything has its rules.    Everything is peace.

Until now.

Seo Joo Hyun is not any angel. She is Chae Young's daughter, one of the most powerful members of The Legion. Everyone is looking forward for the great inherity. But she feels that something is wrong with her and if somebody notifies the worst could happen. She knows that you can't be weak in a world of no emotions.

Lee Jong Hyun is the Alpha demon of the BlueFire clan, protector and leader of the pack. Searching the reason of many crimes in the city, it all ends on one suspect... an angel. So now he has to find the culprit. But he has to be very careful in a world of animals.