tl;dr: A manga with some pretty interesting concepts and that looks at some pretty interesting issues, but doesn’t really do much with them in the end. 

I found this manga pretty unfocused and while I think it did a lot of things decently, I didn’t think it did anything particularly well. I believe one of the key aspects of this manga was diving into space exploration, and looking at some of the less looked at aspects of such, mainly debris collecting and groups that oppose such on principle. I think that if it focused on that entirely and went more in depth into that, it could have been a better story because the aspects related to that were interesting, but just as important was the flight to Jupiter, which was a much more standard story and not executed that well.  The story threads that popped up never felt like they had proper endings, but rather the plot just moved from one to the next in a pretty disjointed way.  I suppose that isn’t too much of an issue, as in general, especially when it got to the second half, this didn’t feel like a heavily plot oriented manga, and there weren’t a lot of moments with a suspense or that made you really wonder what would happen next. Rather, the focus seemed to be more on the characters and their psychological state. It explored a lot of different things, humanity feeling small compared to the rest of existence, why astronauts feel compelled to give their lives for something so far away, the feelings of people willing to give up anything in order to complete their grand goals, and ultimately what it is that drives people in general. All of these were somewhat interesting, but all in all I don’t think any of these were explored in that much depth, certainly not enough to hold up the manga, and to a pretty large degree it didn’t feel that most of these had a point. There were a lot of moments where topics like these would be brought up, and as a result Hachimaki would change mindsets, but it wasn’t entirely clear to me how this was occurring, and so it felt pretty random to me and the character development not really justified. Especially the ending, with the line on love just feeling kind of generic and cheesy.