The Saja Manager

Alyssa was a regular half demon-half human, she took hundreds of souls, quickly impressing gwi-ma.
She lived as a regular human in her early 20s. She had a job, apartment, and even has a huntrix obsessed best friend who basically lives with her. Despite her friends efforts, Alyssa refuses to share her love of huntrix. One day, she is called to the demon world and told she is going to be a manager to this demon boy band to take down huntrix, despite her objections.
She tries her best to be the best manager while also protecting her friend from the demon boys. Can she do it?