User blog comment:Shaldemar/Prototype: Timeline (Light Novel Vol. 4 until Vol. 9)/@comment-27033694-20161017151335

There are some contradictions.

9th month, the the "demon invasion"

''I shouldn't speak to Gazef... even if its been two months ago... ''

So the battle with the Sunlight Sripture was in the 7th month and not in the 6th.

7th month: 1st,2nd,3rd volumes

8th month: 4th and 8th volume

9th month: 5th volume and 6th volume