The vampire was touched by her compassion, that she could be so worried for him when it was truly her own safety that was on the line. He might not have had quite the severe edge a willing hitokiri of his age and skill would have, but he still had the will to ensure that her husband would not come after again. A part of him included the possibility of having to kill him, a quiet but poignant part.
"Then I will remain here, degozaru. For now," he conceded with a weighted sigh, though there wasn't a trace of aggravation in his eyes. "But truly, I am not worthy of such concern."