User blog comment:B214/Volume 23 discussion blog/@comment-172.56.17.58-20170417051436/@comment-30924344-20170417190536

@Pawn You mean when she becomes the Head.

@Sky No Rias is the heiress. She is not a stand in. Sirzechs gave up his position as heir which made Rias the heiress. Millicas was born after her and so is next line. He was not born when Sirzechs was still the heir, due to age difference between Sirzechs and Rias which is a hundred years and Millicas was born 110+ years later. No way in hell Millicas was born when Sirzechs was the heir as way before he was born, Sirzechs became the Satan Lucifer.