Robin Sena arrives in Japan to replace a fallen member of the STN-J. Engrossed in a witch hunt, the members of the team are unaware that this quiet 15-year-old is the new Hunter and brush her off. When they finally corner the Witch will they come to appreciate Robin's power?

A Witch named Kazuya Misawa is on a high-profile trial for murdering his business partner. However, in spite of police tampered evidence, since Misawa was never seen touching the man it's not likely he'll ever be convicted. The STN-J now has to take care of Misawa themselves, before he kills again.

While searching a shanty town for a potential Witch, Sakaki investigates an oddly agitated man. When the man suddenly flees from him in terror, Sakaki chases after him and inadvertently causes terrified man to run into traffic and struck by a truck. An autopsy reveals the man wasn't a Witch after all; just a normal man with the scent of olives. The question remains: Why did he run when he had no apparent reason to?

As part of an STN-J a sting, Dogima and Robin take jobs as waitresses in Harry's bar. The man they're hunting was once betrayed to the STN-J by his own father, the owner of Harry's. As they wait for the prodigal son to return, the STN-J begin to realize that they're not the only ones after Yutaka Kobari.

The survivors are left picking up the pieces in the aftermath of the attack on the STN-J. With both Robin and Amon missing, the Team is seriously short-handed. Even Dojima is pressed into service as a Hunter. Try as they might, though, the strain is taking its toll. And still the question remains: what did the invaders want?