I actually didn't realize there was a manual for the first game.
Reading through it now, it makes more sense that the original seems bland, as it's front loaded in the manual. It also confirmed my suspicions that the two games are essentially a prologue to the actual story, one that would unfortunately never came due to the third game never being developed. The games as well as the manual hint at a world so much larger than we ever see as players/readers, and it's disappointing it never got fully realized. The manual actually has some good foreshadowing and connections that don't even begin to reveal themselves until the second game, adding much more weight to what is a confusing story without it. It at least reveals that the developers had a clear vision for what they wanted this series to be, sadly it wasn't executed well.
