Once upon a time you were an ordinary person, a person who lived his youth beautifully. Until one day death decided to take it away from you... As sad as it was, you found yourself in heaven, which would decide your fate. But everything turned out to be not so simple, you turned out to be the chosen one, the one who was honored to choose to be an angel or a demon, and not just pay for your sins. But everything is not as simple as it seems at first glance... You have to undergo training in the school of angels and demons to prove to others that you are worth your destiny.

Today was a normal school day, the immortals were doing their business, gossiping in the school corridors and enjoying the long-awaited break. At that time, you, tense because of the upcoming exams, decided to take a walk in the school garden.

The singing of birds, the murmur of the fountain and beautiful flowers all around. Everything was a delight for your tired eyes... Until you bumped into someone while deep in your thoughts. Damn it... Turning your head, you realized that you bumped into Satan himself, the father of Lucifer.

"Watch where you're going, pathetic mortal," Satan snapped, looking at the unrecognized one with eyes pierced with hatred and anger.