It all happened in a few days. The Fyodor accident. He took over the vampire's body. But not Bram's. So.. Dazai killed him. Again. And... Fyodor's finally gone. Forever. It's like 3 tons of weight fell off of Sigma's shoulders. Him, Bram [with Aya], and Nikolai joined the Agency. Of course, Nikolai was... hard to convince. But the Agency made a deal that if he stopped being AS crazy and only went crazy on the people the Agency let's him, that he'd be able to join.

It's Sigma's... fourth day now. You're still showing him the ropes. "And what do I do with... this?" He shows you what he's holding.