From Seven Seas:
Have you ever felt that there was something missing inside of you? Have you ever been envious of what other people have? Have you ever wished for someone that could make you whole? You need not worry any longer. Your time is near. A new possibility is dawning - a time that will end all suffering.
Witness the first appearances of the mysterious Towa Organization as Boogiepop finds himself hunted by the synthetic human known only as “Spooky E”. All the while, a deadly entity is out to remake humanity in its image, one mind at a time. Can you escape from the clutches of the Imaginator?

The second and third novels in the series.