User blog comment:B214/Volume 23 discussion blog/@comment-190.160.185.214-20170328173222/@comment-31137559-20170329145252

Well it's obvious he's going to marry all of them as we've seen in Ex. And why would Issei's parents become devils? Let's make everyone affiliated with Issei into devils! That's a great way to ruin the story. Not everyone wants to live almost forever. Vasco Strada could have been reincarnated as an angel and he denied it. Who would want to reincarnate two middle-aged parents that have no special abilities or talents?