The RIS investigates a death that appears to be linked to Killer B, though Keith disagrees. Another body leads them to stake out a high-powered party.

Koku and Keith both pay visits to the Royal Library. Afterward, Lily heads to Keith's apartment to discuss her thoughts on the Killer B case.

The team members grapple with the attack on one of their own, and the fact that there must be a traitor on the inside. Koku realizes who Canopus is.

The RIS races to the scene, while Keith confronts Gilbert at the old Jaula Blanca facility. Koku fights Laica for his and Yuna's survival.