"How is it your fault that she chased you down?" Koumyou asks gently, "That she wouldn't listen, when she did? I tried to talk her into leaving, too. I gave her every chance, even after I started to show her what I am."

So that this conversation wouldn't have needed to happen.

"She made her choices, and none of them were your doing. Not a single one. What do you think would have happened if you'd been stuck there, without me? Do you honestly think she would have listened to you, when she wouldn't even listen with own death hanging over her head?"

Koumyou gazes at him steadily.

"If you had a gun with you and you were attacked with lethal intent, and you shot the attacker, would it be your fault for having the gun?"