I'll keep my review simple since I agree with the review written before me.
TL;DR at the bottom
Typical but interesting. You can take a preexisting genre and make it work. What matters is the execution. This just as in plot standpoint is the your typical shonen manga you've seen rising in popularity over the recent years:
Weak protagonist is weak, meets some supernatural force, some outer force threatens loved ones/world, protagonist gets stronger by the POWER OF FRIENDSHIP, and eventually defeats threat.
The overarching plot seems to dwell with memories, emotional/psychological trauma, growing up, friendship (duh), and relationships with loved ones coupled with a sci-fi space cops theme.
This in execution works very well since the manga has some nice subtle moments where the plot is large enough for characters to develop with the overarching mystery (that I will not name for obvious reasons).
However what doesn't work is the subplots and the pacing of some arcs. Some of the subplots are good enough since it dwells in the realms of character development rather than forcing in a new alien or plot device. However some fall flat mostly because of the pacing. I won't go into specifics but one of the biggest arcs revolving around the main protagonist's character development is so rushed, the conflict goes away in an instant. It honestly left me a bit disapointed since I really would've like to see this part fleshed out.
It's not always like this but on some parts it is.
Subjective but in my opinion, it's fucking amazing!!! Everything is fully-coloured, styles are on point, and people need to give Akira Amano some credit for her creativity in designs and the powers her characters have
Akira Amano makes the best 'zero-to-hero' male protagonists. Chuuta Kokonose has a beautiful character development and honestly I can say one of her most complex character in the series. He seems like your everyday shonen character but he seems more human because he has a personality and values other than 'saving the world for my friends and family.' He does encompass those tropes but again, the execution is very well done
Her villains are either hilariously hot, evil, or hot and evil. We don't see much as of now but the main villains (Heaven Sider and some I won't name because SPOILERS) she did set up for now all have their darker moments coupled by their more complex moments.
Her female characters are her weaker points and yeah... although I don't have a big issue with most of them, Misuzu Sonokata just rubs me the wrong way. I was never a fan of the bitchy/tsundere/kuudere type of characters because they never have a reason to outright bully the main protag. Sure they give her a reason here, but she doesn't grow out of it solely for the fact that WE MUST PUT ___ CHARACTER IN ___ ARCHETYPE. So yeah more for horrible character development for her
I honestly think the main problem with this series is an identity crisis. Akira Amano's previous work, Katekyo Hitman Reborn, was catering more towards females than males which worked for the most part with her beautiful art style and gorgeous designs.
This however, feels like it's trying to pull both demographics but fanservice for both genders (and that technicolour rainbow in between) are...mediocre. Sure the character designs are pretty but the fanservice you give us aren't the best. And don't take this as me thirsty for more hot guys (which I am) but she PURPOSEFULLY presents us with these types of situations! I'm not asking for some R18 or partially nudity, no, I just want the series to figure out which demographic its aiming for. She tries to balance out the fanservice for both genders but at the same time, tries to tame them so it just turns out mediocre.
Story - Typical shonen plot but well executed with a few pacing problems and an overarching mystery set in sci-fi setting
Characters - A great 'zero-to-hero' main protagonist, interesting side characters and villains, but suffers from some archetype characters that refuse to develop
Art - (Subjective) A FUCKING PLUS DESIGNS AND ART HOLY SHIT I LOVE THIS ART WITH A PASSION
Fan Service - Great designs. Suffers from an identity crisis though
Other- The manga does get better once the main arc is introduced