This was an interesting manga.  I say interesting because it is unlike any other manga I have ever read.  It’s about a girl who goes to the neitherworld take the place of her professor and continue the exploration and communication with native anthropomorphic species.  The book is mainly about trying to understand each other, both in language and customs.  This does make the book a bit dry, and slow paced, but still a very interesting read.  I would pick up book 2 to figure out what happens next.