I remember reading the first volume scanlation of this after it's first volume was released on March of 2006, and being super impressed with the art and story by Moriyama Daisuke, but then the scanlators started using magazine scans and I dropped it. Going through my amazon.co.jp cart this year, I noticed I had the first several volumes on there, but never ordered them because of my budget in 2008 in addition to my lack of confidence in reading and understanding a seinen manga without furigana.
Finally reading this story from beginning to end, I would've never thought the plot would progress in this fashion using '嘘' as its theme. It's been so long since I read Chrno Crusade, or reread the one-shots I translated by Moriyama Daisuke (Koko ni Iru Suiren, Alice in Cyberland), so I don't know if I enjoyed World Embryo's characters more than Moriyama's previous works. But it's a real shame that only magazine scans exist in English; the quality was all over the place, and the last two chapters are fairly bad. It's fortunate the entire series is available on bookwalker (JP).