Mephistopheles looked aside at the angel student with a small look of scorn before it slowly softened into a look of surprise

He had realised the student in question wasn't any of Lucifer's brothers...those disgusting fallen angels posing as demons...

He spoke calmly with a gentle stare "Are you perhaps lost? RAD is quite large for a new exchange student.... Diavolo would want me to help you, if you were, and I shall do exactly that"