So this is the first work of Nihei Tsutomu that I've read . I have to say it was pretty enjoyable for me at least.The author seems to use little dialogue and tries to make the readers understand the world through his magnificent imagery and he does that pretty well I believe.
The story is a bizarre world in which there seemed to be some huge buildings called mausoleums that were destroyed by some monstrous things called Gauna , only one remained and it was really important for humanity's survival.The things that are showed to us are at the time when only one remains and it is endangered.

There are many mysteries about the story ,but I would consider that fact kinda charming .The ending felt like a cliff hunger ,but it's understood what probably happened

I honestly can't wait to read more of this mangaka's works

I would recommend it Abara, as it is a really small and enjoyable adventure to this bizarre yet beautiful world this mangaka created
7/10