User blog comment:B214/Don't ask about season 4/@comment-112.134.33.32-20160615111348/@comment-26821288-20160616045548

Well, you'd better start from Volume 1. I mean, the latest Volume you can start reading from is Volume 5, because the 1st season and the 2nd season were pretty much the same as the LN, except for some details, sometimes somewhat important, sometimes not.