User blog comment:B214/Kuoh Academy students finding out that Issei stays with the ORC girls and is dating Rias./@comment-24098614-20131216105839

I think that the Issei's worst enemies in the school if they were to find out would be the girls themselves because quite a few of them have strong desires for Rias and the other girls, and trust me women are more dangerous than men when they want something, and since Issei is not very popular with them they could castrate him or do something so embarrassing that he would have to leave school never underestimate women when it comes to cunning and just being devious.