User blog comment:B214/High School DxD EX/@comment-27083298-20170415041321/@comment-31137559-20170416172304

Raphael, Uriel, and Gabriel are archangels as well. Michael is the only one we've seen that has golden wings. They are also Great Seraphs and need a way to distinguish themselves from the Seraphs that have 12 white wings like Metatron.