Solo Leveling incorporates isekai elements, but it's not a typical isekai storyline.

The anime adaptation of Solo Leveling, based on Chugong's final work, has finally hit the screens, bringing to life a rich narrative that has captivated millions of fans. Produced by the renowned A-1 Pictures, the series promises to deliver an incredible experience, enriching the already enticing source material.
Action and Fantasy in Solo Leveling: A Parallel World Shrouded in Mystery

Solo Leveling takes viewers on an intriguing journey filled with action and fantasy. The story unfolds in a contemporary setting where interdimensional gates, known as the Gates, connect our world to another realm teeming with demons and dangerous creatures. This premise echoes common scenarios found in isekai stories, a popular genre that often explores the theme of parallel worlds.
The plot revolves around the Gates and the Abyss, the habitat of mysterious creatures and mythical beasts. Humans with special abilities, known as Hunters, confront these creatures to seek treasures and resources. The main character, Sung Jin-Woo, starts as one of the weakest Hunters, but after a tragic event, he gains unique abilities that allow him to enhance his strength in unprecedented ways.
The Essence of Isekai in Solo Leveling's Progression: Differences and Similarities

Isekai is a Japanese term used to describe stories where characters are transported to different worlds. This genre can be divided into various types, such as 'Gateway Mission,' where the journey begins through a gateway, and 'Invasion,' where elements from another world invade the real world.
Solo Leveling features Gates connecting Earth to a world full of supernatural elements, but it differs from traditional isekai where most action takes place in an alternate world. In Solo Leveling, the Gates are the key to these worlds, but the focus remains on our world.
The story revolves around fantasy and isekai elements. While it exhibits typical characteristics of both genres, it doesn't fully align with either. Unlike some anime, like 'GATE,' which unfolds almost entirely in an alternate universe, Solo Leveling predominantly unfolds in the real world. Other series, like 'Is It Wrong To Try To Pick Up Girls In A Dungeon,' explore fantasy and RPG themes without delving into the isekai aspect.
Conclusion: Solo Leveling is the Fusion of Fantasy and Isekai

Although Solo Leveling contains elements that could be considered isekai, such as the presence of Gates and a world full of magic and monsters, the story focuses more on the real world and how characters interact with threats emerging from the Gates. This emphasis creates a unique dynamic where fantasy elements are explored akin to a role-playing game, rather than delving entirely into the isekai formula.
The narrative draws inspiration from parallel worlds and the interaction between them, maintaining its roots in the real world of the main characters. This creates an intriguing balance where the supernatural is an extension of the real world, rather than a complete escape to an alternate reality.
Solo Leveling's essence lies in the fusion of fantasy and isekai, illustrating the diversity and complexity of this genre. It challenges the traditional boundaries of these two genres, offering a familiar yet innovative experience. This approach allows Solo Leveling to stand out, providing fans of both genres with fresh and captivating elements.