Siris

Siris is Riser's Knight.

History
Not much is revealed about her past, only that on one point she was revived as a Devil by Riser.

First Story Arc
She appeared with Riser and the rest of his peerage at the Occult Research Club.

At the Rating Game between Riser and Rias, she was defeated by the combination attack between Issei Hyodo and Yuto Kiba.