User blog comment:B214/Volume 23 discussion blog/@comment-206.224.253.186-20170330165615/@comment-31137559-20170330202134

It's not mandatory for a high-class devil to have a peerage(well most likely if you are the heir to your house). It's also not mandatory for those promoted to high-class devils to have evil pieces. Only if you want a peerage will you receive your own set of evil pieces. And even if she did get a set of evil pieces, what's the point of using them on two middle-aged parents with no powers or special abilities? Some people have come to terms with dying soon. Not everyone wants to live almost forever. And plus Issei's oldest children are teenagers 30 years from now. Issei's parents would be old but spend their retirement spending time with their numerous grandchildren. Issei's parents dying will be something they will all have to come to terms with as part of being devils.