Heart of Glass

Centuries ago, an assassin called the Glass Hunter devastated the last demonic empire. Now, the empire has been resurrected, and it is out for blood. When the empire attacks, the most elite Hunting academy in the realm takes on the job of stopping them. At the forefront of this operation is Louis Blanc, who experienced the Glass Hunter's ferocity firsthand when the empire initially fell. And on the sidelines, wanting nothing more than to consult on the case in order to exterminate the demons and finally get away from the monsters is Professor Alexei Rivian. However, acting as a consultant isn’t so easy when he’s living a double life, and every move he makes is being watched, everyone around him just waiting for the glass to shatter and expose his secrets.