User blog comment:B214/Volume 23 discussion blog/@comment-201.215.165.7-20170319153954/@comment-31137559-20170319160110

Are you saying that Issei's parents couldn't have children before because of Issei's Sacred Gear? That makes no sense. How would Issei being born with the Boosted Gear affect the two times Issei's parents tried to have a child. There are people in real life that struggle with having children. It's not like that is all that uncommon. The fact that Issei was born with the Boosted Gear has no effect on the fact that his parents failed in having a child the first two times.