Robin, a young introvert witch, is the latest member of a secret government police unit that hunts down and arrests witches and warlocks. The team's latest case is a warlock who partnered up with a warlock they can't I.D..
The court frees a man accused of murder, since the victim's death is unexplainable and neither the court, nor the public know about the existence of witches, warlocks and magic. Robin's team is on the case, but so is an unhinged cop.
Amon, the leader of the team, suggests glasses to Robin, since she can never hit her targets with precision. She is not fond of his idea at all. She meets a strange painter in the local park, close to where some murders occurred.
The team is looking for a missing businessman among the homeless population. Instead, they discover a strange occurrence in the homeless shelter where people suddenly become abnormally nervous and panicked for no apparent reason.
A woman who gives Robin a ride during a storm dies the same night in a car accident. Robin investigates. The first person of interest is the strange emotionless co-worker the woman went to see after dropping Robin off.
A shady man is magically burned to death from the inside. The team comes up with a suspect, but she is already dead. Is it possible that someone is seeking revenge from beyond the grave or is there a more mundane explanation?
The team sets up a sting operation in a local coffee shop where they regularly hang out. The mysterious owner and sole barista of the place is their long time friend and associate and the target is an important person from his past.
A secretive member of an elite Vatican unit of investigator-priests known as the inquisitors is sent to Japan on a special assignment to interrogate a person of interest in a strange old murder case. The team assists him.
While on a case, Robin is ambushed by a sniper. She survives and finds several anti-witch bullets that her unit was using before it turned to non-lethal means of dealing with magic users. This is just the beginning of a very bad day.
One month after the headquarters incident, Robin is in hiding, Amon is missing and the rest of the team is trying to move on without her, but she's still in their hearts and minds. One day, by accident, Robin runs into a friend in need.
When a rumor spreads that the wheelchair-bound old woman left a powerful magic artifact behind her, a dangerous warlock called the Professor goes after anyone who may know more. Robin, her protector and her team also investigate.
While investigating the magic artifact, Robin who has no family befriends a nice married couple of magic users whose daughter was taken by the Factory, the secretive company that imprisons forever all arrested witches and warlocks.
Amon is acting very strange, so Robin and her protector try to follow him. He leads them to an old woman whose late son worked in a company tied to witch hunters. In his room, Robin finds a photo of a woman who looks a lot like her.
Robin is visited by a familiar face and she finally discovers the details of her mysterious past. Now, she and her team have only one course of action left - to take the Factory head on. It holds their friend and all the answers.