Rakan, one of the most feared Monarchs in the Solo Leveling world, has entered Solo Leveling: Arise as a full boss encounter. The game localizes his name as Adan, the Monarch of Fangs, and drops him into a fresh side story where players can take him on directly. This is one of the first times a Monarch shows up as a complete, playable-scale threat rather than a brief silhouette.
Quick answer: Rakan, renamed Adan, the Monarch of Fangs, was added to Solo Leveling: Arise on July 30, 2026. You fight him as a boss after clearing the hidden Chapter 12 story, and at his current level he is stronger than the anime version of Sung Jinwoo.
How to fight Adan in Solo Leveling: Arise
The Monarch of Fangs is not a standard roster addition you pull from a banner. He is a villain you meet at the end of a Hidden Story, and reaching him means playing through the new chapter that unlocks the encounter.
The story starts with a Hunter Berserk Incident. Sung Jinwoo and Baek Yoonho are pulled into an investigation, with the White Tiger Guild fully involved. The mystery builds until the trail leads to the true culprit behind the incident, and that culprit turns out to be Rakan. The chapter ends in an all-out battle once Jinwoo and Yoonho come face to face with him.
The boss becomes available after completing the hidden Chapter 12. This side story is original to Arise, taking the confrontation beyond anything found in the manhwa or web novel, so even readers who know the source material will run into new content here.
Who Rakan and Adan are, and why the name changed
Rakan is a Monarch, part of the ancient race created to destroy the world. He is known as the King of Beasts, or the Beast Monarch. The Arise version keeps his design faithful to both the manhwa and his brief anime appearance, which came near the end of Season 2 when he showed up alongside Sillad.
The name swap is not a random rebrand. Adan is his intended name from Chugong, and Rakan is the spelling that ended up spreading through the manhwa. Arise uses the original form, so Adan and Rakan refer to the same character.
| Detail | Adan / Rakan |
|---|---|
| Title | Monarch of Fangs / King of Beasts |
| Arise name | Adan |
| Manhwa name | Rakan |
| Added to Arise | July 30, 2026 |
| How to reach him | Complete hidden Chapter 12 |
Rakan’s powers and beast form
As the Monarch of Fangs, Rakan fights on raw strength. His signature move is his Spiritual Body Manifestation, which turns him into a giant white werewolf, and in that form he overwhelms enemies through sheer physical power.
Beyond brute force, he carries the standard Monarch toolkit. He has immense speed and durability, Telekinesis, and Regeneration, which lets him recover through a drawn-out fight. That combination is what makes him a serious wall for players in the new chapter.
Why he outranks the anime version of Jinwoo
At the point where the anime currently sits, right after the Jeju Island arc closed out Season 2, Jinwoo is strong but still far below the Monarchs. Rakan is one of them. At his current power, he could take down the Shadow Monarch, and it is only later in the story that Jinwoo climbs high enough to match him.
To even the odds, Jinwoo first has to gain the Black Heart from Ashborn. That happens during his return to the Double Dungeon, where Ashborn gives up his powers and helps him defeat The Architect. Even after that, Rakan remains a punishing opponent.
Their real clash comes in the Monarchs War arc. Jinwoo faces a three-versus-one fight, loses, and is killed when Rakan pierces his chest with his claws. That death is the trigger for Jinwoo’s true transformation into the Shadow Monarch. He gets back up and, now fully powered, overturns the fight into a two-versus-one against Rakan and Sillad. For all his strength, Rakan still lands well below the Monarch of Destruction, Antares, in the wider ranking.
Where this sits ahead of the anime
The Monarchs War arc is still a long way off in animated form. Season 2 ended with Jeju Island, and several arcs stand between that point and the war. The film Solo Leveling: Beyond the System covers the Ahjin Guild arc and the Return to the Double Dungeon arc, and only after that does the Monarchs War become reachable, either in another theatrical release or a third season. Working through the International Conference arc and then the war could take at least four years.
That gap is exactly why the Arise boss fight matters. The July 30 update pairs Rakan with other additions, including Jung Yerim, and its Hidden Story hands players a full Monarch encounter years before the anime gets there. It also expands his character past the Monarchs War material from the novel and manhwa, giving one of the franchise’s major villains more room than he originally had.
