"Well, we hadn't realized at first who it was. I mean, we knew it was Envy, but that it was him specifically, and he convinced Brian to ask Edward if he could live there, for a safe place to live where a Dante couldn't get to him. By living there, he falls under the same rules of protection as the other residents, and given that he'd done nothing since his arrival to warrant having that right removed, Edward was determined to uphold it."