Board Thread:Questions and Answers/@comment-198.52.158.171-20200707194406/@comment-36009152-20200802182731

As well as the extra time to create the manga so it's not rushed, further possible reasons for the month release is that there are two concurrent manga as well as the light novels. Months in between allows for the developing stories to intertwine at the right times, oh yes and side stories could make the original planned series longer!