User blog comment:B214/Volume 22 spoilers/@comment-50.139.232.230-20160923232938/@comment-1359322-20160924030210

The soon-to-be head of the Gremory clan, Rias, daughter of Grigori's 2nd-in-command, Akeno and princess of the Youkai, Kunou. I wonder if it'll be so easy to manipulate Issei.