Board Thread:General Discussion/@comment-4698889-20180704065950/@comment-4698889-20180927090517

From this scene:
 * I was given the new name of “Cherubim”, and came to work as a servant of the Venomania family.

The phrasing makes it sound like he didn't have the name Cherubim previously, otherwise it would be more of, as you said, "I got my name back" or something along those lines.