This manga is really good! It's a shame it never got picked up for publishing outside of Japan!
Zero: Kage Miko or in English Fatal Frame: Shadow Priestess is a spin off manga within the Fatal Frame/Project Zero Universe. This is in no shape and form relating to the video games. So don't expect Miku, Mio, Mayu, Rei or any protagonists or ghosts from the video games to appear in this manga.
This manga is really good and I highly recommend any Fatal Frame/Project Zero fan to read this! Especially if you're suffering from withdraw with the lack of Fatal Frame games being localized...It has the
same lore building settings at the games, and the artwork is incredible being that they're really creepy and well draw panels that will send a chill down your spine!!
If you're a Fatal Frame/Project Zero fan, then this manga is a must read for you! If you're looking for a good scary manga then I can't recommend this Zero: Kage Miko enough!