User blog comment:B214/Talk About What You Want! 3/@comment-25290120-20150405203546/@comment-24098614-20150405225242

The name you are referring to is Astaroth, and he is worst than a scumbag, and it was a shame that Issei didn't kill this guy in that Volume but it was a member of the Old Maou Faction that finished the job because if anybody deserved a painful death it was this guy since he wanted to rape Asia forcefully.