The characters are amazing especially Muryou, I didn't really understand his past throughout the show but he is still my favorite character. Hajime was kind of a bland character but he wasn't the worst, I don't really think there was a "worst" character in the show because they were all very interesting.
The story is what hooked me in, The fact that in the beginning there was some alien thing and none of the towns people cared just seemed kinda funny but still odd.
All in all this show is a must watch and I think it's a solid 8
