User blog comment:KID2NR/Second Season Confirmed/@comment-60.53.96.247-20130401033145

I have a feeling that DxD will cover around 2 or 3 Volume between the seasons

Season 1 -  Volume 1 & 2

Season 2 - Volume 3 & 4

Season 3 - Volume 5 & 6

Season 4 - Volume 7, 8 & 9

Season 5 - Volume 10, 11 & 12.