The Demons Within

21 years old Mara is no ordinary human, in fact she isn't at all human. She is the first demon hybrid ever to exist in the demon underground, the ultimate demon paradise and the owner being none other than Kagen. Kagen is the prime of the demon underground and co-owner being none other than Jolene Mara's bat-shit crazy grandmother.
When Kagen see's Mara fight in the fighting ring he immediately calls her to his quarters.
Why?
What will happen when Mara gets kidnapped?