Shame that Marry Grave ended. I was enjoying the manga in the beginning and it was kinda bringing my nostalgia for the older adventure/fantasy series. I have seen a lot of people saying that Rosarie should have been the main character, that the flashback was the best, etc. But for me that was where the manga went downhill. I was enjoying the manga while it was Riseman's adventure, the flashback felt like entirely different manga, which I overall didn't like. And it was a bit too lengthy for me, there were like ~20+ chapters flashback out of ~40 chapters. After that it added an annoying kid and it was too late to recover. In my point of view I see why it failed, although I see most western fans don't agree with me. Shame, the manga had so much potential, but went in a wrong direction and it was too late to recover after that.
I was feeling that Memesis was cancelled when they rushed to defeat the Demon King, but was surprised it continued after that. But unfortunately it's still getting cancelled.
I'm hoping for Defense Devil/Area D author to return soon, it's been 3 years since Area D ended.