User blog comment:B214/Volume 21 info & spoilers/@comment-124.107.216.47-20160616194612/@comment-27083298-20160616213448

Look here it tells you that EX is created the everything that BorN messed up.

https://m.reddit.com/r/HighschoolDxD/comments/49mhas/high_school_dxd_ex_timeline/