I haven't seen this anime, in fact, I didn't know it exists, but the way you review it makes me have great expectations since I like this kind of stories a lot. As promete0sz says, it's very interesting that this anime has aliens in it.
Thanks for sharing this interesting review in the community!
Yes, no one would think that this anime has aliens, time travel, spaceships and post-apocalyptic futures. It has pretty much everything a sci-fi fan would look for, just with a story that's a bit different than what people would expect. It's worth watching, and it's also a complete story, with an ending and everything.
Thank you all for the support you always give me.