The people who were after Ciara already knew of his existence. This meant that it wouldn't be long before his Identity was fully exposed, if it hadn't already been.
Now stuck in such a precarious solution, Noir considered his encounter with 'Truth' a while back, and the fact that his cover which he had painstakingly kept hidden would soon be revealed.
'The best choice for me right now... is to leave!'
He wanted to tell Ciara about his. If he stayed any longer, Helix would finally catch up with him, and once that happened, it would be over.
Unlike the amateurs that were being sent to capture Ciara, every member of Helix was a monster in their own right. The Homunculi had their specialties, and their magic powers were already beyond the 9th Tier.
"N-Noir?" Ciara called his name, still curious about what he wanted to tell her.
Looking at her, he didn't want to leave.