Board Thread:Questions and Answers/@comment-24098614-20160523193337/@comment-25942629-20160523220715

It is really hard to say. It seems like Shinoa Squad escaping in Nagoya may have been part of Guren/Mahiru-no-yo's plan. He definitely got Ferid to send Yu to him to use him as a seraph, but Guren looks like he grew attached over time.