Last Descendant

Tabitha, a demigod who who became a tamer due to a sacrifice her mother did to save his brother, Carter. She's one of the two remaining first class tamers who was chosen to tame the Aquarius' last descendant. But the last descendant isn't just a typical one and drove the inner demon inside Tabitha which her mother tried suppressing for a very long time to save both the Demon and the Spirit Realm.