User blog comment:B214/Volume 23 discussion blog/@comment-172.56.17.58-20170417051436/@comment-31137559-20170417212204

Or maybe she considered Millicas a better head than herself. For example Sairaorg stated that his younger brother Madgaran was better suited to be the head than him and actually believed Madgaran could lead the house better than he could. Rias most likely thought the same. But if she was a fill-in, it would have been stated. Why do you think she has been addressed as the heir to the House of Gremory? And it has been stated that Millicas was the 2nd heir.