The manga revolves around a book, as well as the characters of Kyungdo and Eunsae who volunteer to help out the library and find the book individually. The book seems to kill anyone who reads it or leads them to commit suicide so that they may become "immortal"- a promise the book makes them it seems.

Eunsae finds the book first, however, seeing the horror within it chucks it away. Kyungdo also findfs the book later and instead becomes obsessed with it. Seeing this Eunsae tries to help Kyungdo and try and protect him from it. Whether this is because she has an attraction to him or because she's a good person is yet to be seen.

We soon find out that Kyungdo has a dark history with the book, although by the end of the first volume there are still mysteries to unfold.

Rather than this being a horror manga that tries to scare the reader, it is more concentrated the mysteries and disturbing events surrounding the book, making it more of a mystery rather than a horror manga, though it is truely disturbing in parts.

The author seems to concentrate more on plot than horror and the intenseness of it all, not putting any of the main characters in life threatening danger. So, though it may be a good manga with a good plot and great mystery, it lacks what other horror mangas have.

Over all I would say it is worth a read.