User blog comment:B214/Question and Answers 6/@comment-38501836-20190423095704/@comment-155.93.250.79-20190423115214

Actually a section of a shin novel has placed Ingvild with Issei's brides.

https://highschooldxd.fandom.com/wiki/User_blog:Piyush_Banerjee/Shin_DxD_2_discussion