One of the main themes is survival. The protagonist has to navigate through various dangerous situations. Another theme is the power of knowledge, as the omniscient reader perspective gives an advantage in understanding the events and making decisions.
There is a character who is a powerful fighter in the 'omniscient reader point of view novel'. Their backstory of how they became so strong and their complex relationship with the protagonist is really fascinating. They are not just a one - dimensional strong character but have their own motives and fears.
The Omniscient Reader manhwa is quite faithful. It does a good job of presenting the plot and characters as they were in the original. Some minor details might be tweaked for better visual or narrative flow, but the core remains intact.
It depends on personal preference. If you like visual media and want to see the story come to life with cool art and action scenes, then the manhwa might be better for you. But if you enjoy using your imagination and delving deep into the characters' thoughts and the more detailed world - building, the novel could be the better choice.
Sure, the Tom Sawyer novel is written in an omniscient perspective. This means the narrator knows everything that's happening and can reveal the inner workings of various characters' minds.