User blog comment:B214/Volume 22 spoilers/@comment-50.181.99.189-20161223042942/@comment-4895759-20161225160957

If you want an interestin Issei with background then go read some good Fanfic on Fanfiction.com,

At first i thought the same, normal backgroun .... eh, but then i get to know more and besides, he dose have that backgroun in wich he was suposed to have two older siblings (prefeable sisters ;-))