Who Is Good? Who Is Evil?

"A demon such as yourself...is training the spawn of a god as a henchman... so that they can kill you when the time comes...?"
"...No. I am sharpening the hilt of a dagger which will free me from the chains when the time will come"

After 1000 years, a blood demon manipulation demon, Loretta, was finally born.
As she turned 13 she finally started attending the Vellshyre Academy, the institute that taught both the demigods and the demons according to a treaty signed by the gods and satan at the beginning of time.
Shunned by both the demons and the gods, will she be able to protect herself and learn in the academy?
Amidst the prejudices of the art of blood manipulation, will Loretta be able to achieve what she truly wants?
What is the true nature of this treaty...? What are the gods and demon kings hiding?