Who is Nezuko Kamado From Demon Slayer: Complete Profile Guide- Face, Voice Actor, relationship and Release Date of Infinity Castle Arc

◆ Role in the Story (Spoilers: Mugen Train Arc and Beyond)

※This section contains significant plot details from the anime and film, including the Mugen Train Arc, Entertainment District Arc, and Swordsmith Village Arc. Proceed only if you are up to date with the series.





Mugen Train Arc: Nezuko’s Role in the Dream Battle
In the Mugen Train Arc, Nezuko plays a crucial role in helping Tanjiro and the others escape from a dream world created by Enmu, Lower Rank One of the Twelve Kizuki. As she had been sleeping inside her box, Nezuko was unaffected by Enmu’s blood demon art. Realizing the others were trapped, she breaks out of the box herself and does everything she can to wake Tanjiro and his companions.

Her keen sense of smell and agility also prove invaluable in locating Enmu’s true body after he fuses with the train. However, when Akaza, Upper Rank Three, appears, Nezuko focuses on protecting Tanjiro and the gravely injured Kyojuro Rengoku. Witnessing Rengoku’s death leaves a profound emotional impact on her as well.

Entertainment District Arc: Nezuko’s Berserk Transformation
During their mission in the Entertainment District, Nezuko faces Daki, Upper Rank Six. In the heat of battle, Nezuko’s demonization escalates dramatically—she grows a horn, her skin is marked with branch-like patterns, and she enters a berserk state. Her overwhelming power and speed allow her to corner Daki, but she teeters on the edge of losing her humanity.

Just as she is about to lose control, Tanjiro sings a lullaby once taught by their mother, which slowly brings her back to her senses. This moment reinforces the strong familial bond that anchors Nezuko’s heart.

Later, when Tanjiro is poisoned by Daki’s brother Gyutaro, Nezuko evolves her Blood Demon Art further—using Exploding Blood not only as an offensive tool but also to purify demon venom from Tanjiro’s body. This surprising application significantly contributes to Tamayo’s ongoing research into a cure for demonization.

Swordsmith Village Arc: Conquering the Sun
The Swordsmith Village Arc marks a major turning point in Nezuko’s journey. While fighting Hantengu, Upper Rank Four, Nezuko once again undergoes advanced transformation to support Tanjiro. Despite the increasing toll on her body, she endures.

The climax comes at dawn, when the rising sun threatens to kill her. In a moment of decisive courage, Nezuko leaps into the sunlight—and miraculously survives. For the first time, a demon stands in the daylight without burning.

Even more miraculous is that Nezuko regains her voice after a long silence, calling out Tanjiro’s name. This deeply emotional moment stuns not only the Demon Slayer Corps, but also Muzan Kibutsuji, who becomes obsessed with capturing Nezuko for her newfound ability.

The Miracle of Sunlight Resistance
Nezuko’s unprecedented ability to withstand the sun represents a groundbreaking moment in the story. While the exact cause is unclear, several theories are proposed:

She never consumed human blood, preserving her moral and physiological boundaries.

She possesses immense mental fortitude, reinforced by familial love.

She is descended from the same bloodline as the users of the Sun Breathing technique, a rare and powerful style passed through the Kamado family.

This miraculous event becomes a major turning point in the story, reshaping the balance between demons and humans and setting the stage for the final confrontation.

Source : DemonSlayer Official