ORV is a novel. It has a rich and elaborate narrative that is characteristic of the novel genre. There might be plans or fan-made webtoon versions, but the original and official form is a novel.
It depends on your preferences. If you like detailed descriptions and immersive reading, the novel might be for you. But if you enjoy visual storytelling, the webtoon could be a better choice.
ORV is classified as a manhwa. It has managed to create a devoted fan base due to its combination of exciting narrative and visually appealing graphics.
The length of the ORV novel is substantial. It encompasses a rich and detailed story that unfolds over many pages. Different editions or translations might have slight variations in page count, but it's a substantial literary work.
Well, without having read it in full detail, it's likely that the 'orv side story' serves to fill in the gaps left by the main story. It could introduce new sub - plots that are related to the overarching plot but not fully explored in the mainline. Maybe it focuses on the relationships between characters that were only hinted at in the original. It could also be a way to explore different 'what - if' scenarios within the context of the 'Omniscient Reader's Viewpoint' universe, such as what would have happened if a certain character had made a different choice at a crucial moment.