Story:
The plot of this show is basically about monsters called phantoms that the main characters defeat. Each main character has an ability to use in combat to defeat them; so basically this is nothing special whatsoever. I suppose you could call this a harem anime, though aside from the occasional subtle nod to romance, this show has nothing to do with it. Only having 13 episodes to start and and end a story means that it should be high quality and not waste time on trivialities, which admittedly the shows feels very episodic and very little overarching plot except for the last 2 or 3 episodes. The show being episodic doesn't make it bad in any way, nor does the plot being thin take away from the show's enjoyment, but I can see why the opinion for this show would be very mixed. I found myself not being interested in the plot at all, but that didn't stop me from looking forward to each episode. I'll explain further down below.
Art:
The colors are all very vibrant and pop even in the most ordinary of scenes and the animation during the combat scenes is very well done. There's not really much else to say about the show's art than it's very colorful and is a big part of why I found the show so enjoyable.
Sound:
The opening and ending themes are quite catchy, so I never skipped them; unlike many other shows which I happily skip, but that is just personal opinion and not something that can really be objective. All of the voice actors suited their characters and Kurumi's voice actor was downright infectious to the point where I would wait with anticipation until she said another line, which may be a first for me. Rating the voice actors along with the sound is a bit of a grey area, so rating it a 6 just symbolizes me having no issues with background music and such.
Character:
Each character gets one of their own episodes to give you an idea of their story. The opinion of how that was done is likely subjective as either you will enjoy a dedicated episode per character or feel they should have alternated focus throughout the whole series instead. I would've preferred the latter because of the episodic nature of this series, the individual episodes didn't really contribute to a grand feel of the show - it was pretty much forgotten by the next episode, so it almost felt pointless. The character design is very well done in my opinion, as each character stands apart from the others and albeit typical in a harem, the audience is bound to feel "loyal" to one character above the others, which I thought was enjoyable because this show doesn't really have a romance aspect. The show being so short doesn't give enough time to really find out much about the characters, but they are still enjoyable.
Enjoyment:
I have a tough time explaining why I thought this show was enjoyable. The episodic nature is both a pro and a con because it invokes a brand new story each week and also a "what is the point of this?" feeling, but the show just has such a charm to me. As dumb as it sounds, it really is just enjoyable because it's enjoyable, however any criticism it draws from lack of story and lack of character development is completely valid.
Overall:
I would completely recommend this show if you want to watch something that's fun and at times cute, serious, and nonsensical. If you don't like the idea of a continuity-loose show, then you might not want to give it a try.
