User blog comment:Crimson and Darkness/DxD Updates 2~/@comment-27083298-20170708223224/@comment-31137559-20170710171202

We already know their origins. Bennia was a Grim Reaper who's father was Orcus, an Ultimate-class Grim Reaper, and her mother was human. She got tired of Hades' and her father's ways so she left. She then met Sona and asked to be made her knight since Sona's original choice couldn't do it. She's a year younger than Koneko and is the same age as Le Fay.

Loup Garou is from a werewolf clan. His father was a werewolf. And his mother was human and a famous magician. So he's a half-blood werewolf who can use magic. And he was attending Kuoh Academy University Division and is just a year older than Sona and Rias.

Saji was just like Issei where he lived a regular human life but was born with a Sacred Gear and Sona made him into her servant. Except Saji wasn't killed or anything. Sona just discovered him.