The highlight is definitely the soundtrack and overall sound design. It's just so good.
As for the show itself, it's definitely different than what I was expecting but it's not bad. There's plenty of potential here and I'd be lying if I say I didn't enjoy this episode.
I'm hoping Sulleta will eventually get less shy and nervous though. Watching her being a nervous wreck is kind of cute but it will get annoying if it lasts too long. Also, I'm hoping they'll eventually break out of the school setting but we'll see about that.
I guess we'll see more of the supporting cast next episode. I'm curious about some of them. And I'm looking forward to see what's gonna happen to Sulleta and Miorine now that they're supposedly engaged.