Solo Leveling has steadily grown into one of the most successful franchises in the animanga industry following the anime's second season. With A-1 Pictures at the helm and a hand from creator Chugong, season 2 of the anime adaptation absolutely crushed expectations with the finished product this time around. Again, this was built off season 1's success and a short gap between the two seasons.
However, with all season 2's accolades and achievements, the anime doesn't seem to be the best way to understand the protagonist Sung Jinwoo. Now, this does not mean that the anime hasn't done well; it has done extremely well. But the point being made here is that the details mentioned in the original web novel flesh Jinwoo out in greater ways and help to truly understand his character.
Disclaimer: This article reflects the writer's opinion.
The Solo Leveling Web Novel is the best way to understand Sung Jinwoo

As mentioned, the original material for the Solo Leveling series, i.e., the Web Novel, looks to be better when it comes to understanding Jinwoo. Important to note, this is not to diminish what the anime or the Manhwa have achieved. Rather, it is a distinct manner of looking at things, i.e., in this case, the Web Novel containing the finer details that present Jinwoo better.
For one, the Web Novel has a greater degree of creative freedom, being written media. This means that details can be expanded upon better and added to with each chapter. Such a point by itself allows the Web Novel to be intricate. In comparison, anime and Manhwa rely more on visual storytelling, which they have done brilliantly, but cannot possibly include every bit of detail.
Moving on, readers of the Solo Leveling Web Novel agree that it does a better job in handling the story's events without keeping much away. Again, the world-building aspect of the novel is superior (due to intricacy), supporting characters are given enough material to make them relevant to the story, and even the monsters feel like they possess some kind of personality.

Now, coming to Solo Leveling protagonist Sung Jinwoo, he is more than the "aura farming" hero. His struggle and journey are personal, one that begins at the lowest rung of the ladder. Being "Humanity's Weakest Hunter" meant he fought hard to best even a goblin. The Double Dungeon encounter set him on an entirely different path. Make no mistake, he grew stronger, but inside, it was the same Jinwoo.
The Web Novel has another key edge here - being the original narration and the ability to convey Jinwoo’s internal monologue. It glimpses his thoughts, fears, and motivations better. The anime expertly showcased his transformation from weakest to candidate for the next Shadow Monarch. But the novel guides readers through Jinwoo's reasoning, moral dilemmas, and moments of self-doubt.
A deeper perspective like this offers a more complex look at Jinwoo, whose quest for strength finds roots in survival, responsibility, and necessity. More than flashy moves and awesome moments, it is such an internal journey that defines him and makes his ascension to power more organic and emotional. This ties into the Web Novel's pacing too, allowing for bonds to form more naturally.
They feel more grounded given the time, dialogue, moments, and experiences shared. Nuanced interactions like these elevate the overall emotion and make Jinwoo's wins more resonant. Put simply, the Web Novel covers for what the anime/Manhwa couldn't do due to various constraints and rounds off the plot well.
In Conclusion

To conclude, the anime adaptation of Solo Leveling has put forth a breathtaking visual treat. Sung Jinwoo’s journey was brought to life thanks to the efforts of those at A-1 Pictures in stunning fashion. But if one is to truly understand Jinwoo, then the anime doesn't seem to be the best way to do so. Rather, the original source material, i.e., the Web Novel, offers a richer and more intricate portrayal.
Its creative freedom and detail give readers a chance to fully experience Jinwoo’s inner struggles, his dance with morality, and his evolving relationships from a closer perspective. Comprehensive world-building, a stage for the supporting cast to shine, and more space and time for bonds to develop and thrive make everything he does feel coherent.
Lastly, Jinwoo's fears, incentives, and sense of duty, coupled with the action and game-like elements, present a more Human Jinwoo. As mentioned, those wanting to fully understand the essence of Sung Jinwoo would find it beneficial to tune in to the Web Novel. It would complement their experience with the anime/Manhwa and round things off in a definitive manner.
Related links:
- I can never hate Cha Hae-In in Solo Leveling, and her accomplishments are the reason why
- Sung Ilhwan being aware of Jinwoo changing the flow of time in Solo Leveling makes sense once you realize his status
- I didn't realize Antares was using Earth as a bait in Solo Leveling, until I discovered his true motive