User blog comment:B214/Volume 23 discussion blog/@comment-31137559-20170618221540

I think Ishibumi should write a story dedicated to Sirzechs called HighSchool DxD Zero. Where it shows Sirzechs fighting in the civil war and beciming a hero, meeting Grayfia and falling in love with her, him becoming a Satan, gathering his servants, going into his relationship with Ajuka a bit more, and him at Rias' birth. And then it can end with his son, Millicas, being born. And the it cuts to Sirzechs about to go into the barrier and suddenly realize it was Sirzechs reminiscing about his life. That would be a good story.

And does anyone feel that Millicas is going to have a mutated knight piece? Because the only known devils with mutation pieces are related to him. His father, Sirzechs, has a mutated rook piece which he used on Second. Rias had a mutated bishop piece which she used on Gasper. And his cousin, Sairaorg, has an unused mutated paan piece. So I feel it's only natural for Millicas to have a mutated knight piece.