I'm a librarian who loves anime, manga, and reading a wide variety of genres.
The first 21 pages were two introductions. On the one hand, they gave me useful information, considering that I haven't read the first omnibus. On the other hand, they contained spoilers. The twist in the first story was ruined. :-(
Still, I'm enjoying the setup - medical mysteries in space. Too bad the author couldn't go more than 7 pages without noting how amazingly attractive the pathologist (the only human woman, so far) is. No corresponding info on the attractiveness of her human male colleague.