It was translated by Bright Novels, so it should be there. I really enjoyed the story, so I highly recommend reading it. As for the differences, I'm not sure, because I didn't start with the first chapter, but with the end of the Elven Kingdom narrative arc. From there, I noticed that there was an arc before the Dreamland one, that doesn't appear in the manhwa. As for the characters, they have the same personality traits and I didn't notice any differences, I just felt like I was reading the same story in a different medium. I suppose there are more details in the novel than in the manhwa, but that's to be expected since one is an adaptation of the other.

does anyone know what chapter are we in the light novel?