This is my first review so bear with me!

I thought this was a great concept and I really did want to enjoy it a lot. But I am going to have to give it a generous 5 rating. I’ll write some pros and cons:

Pros:

Nice concept for a story

The lingo and terminology for the story’s sci-fi aspects were well described and easy to understand.

The art was good, and not overly fanservicey for a harem.

Cons:

The story was very poorly executed. Not only that, but I had this feeling midway through the 4th and final volume that the ending was going to make it worthwhile. Instead, there was a cliffhanger and not much was resolved. I know this is based on a light novel, and I am not sure if the novel was still ongoing, but either way, it left me unsatisfied.

Very under-developed and almost identical characters. Yuu was a very generic male protagonist, his sister was unlikeable to me for the most part, the writer did not help me sympathize with Iris enough to care what happened to her, and the rest were pretty much just in the background. I feel that I could have really like Firill and Ariella had they been given a backstory or even more lines.

The harem element also fell short. I do enjoy harems because of the variety of female characters we get, but these girls were neither relatable nor charming in my opinion. I always knew which girl Yuu would pick. Not that it isn’t obvious in most harems, but I like when the protagonist wavers somewhat. It makes it more realistic for me.

Overall, this one is skippable in my opinion. It is never a good thing when you are happy a manga was so short. This didn’t stand out in any of its listed genres and was very average.

5/10