Nigredo glanced up, the wonder now locked on Senna's offer. Which hardly made sense. Why even extend a hand of friendship to him? She didn't even-- "But you don't know me," he muttered.

And she didn't. The teenager had yet to be informed of Nigredo's origins and misdeeds, and the child did not know how she would react to them. If Klavier's reactions were of any indication, perhaps she would feel the same. Or worse. You simply did not become friends with a weapon and expect normalcy such as bonds. Sakura was an exception, and she had not lasted very long.