Seemed like a lot of stuff happened this week. Arika potentially still being alive (since she obviously wasn't executed 18 years ago, right?) as well as not being bad (granted we all kinda knew that) and the magic world is Mars? Never would've guessed that one.
I'd be annoyed that there's no chapter next week, but considering this week took 2-3x longer to read than an average chapter of other manga, coupled with the fact that he has to draw like 15 different girls in different dresses through the whole thing I can understand it taking some time.