Biodata

Feature Value
Name Ryomen Sukuna (宿傩)
Alias(es) King of Curses; demon god; strongest sorcerer in history 19 39 42
Species/Race Ancient human jujutsu sorcerer who incarnates through vessels; becomes a curse in the Itadori-family simulation 27 37 42
Gender Male
Affiliation Served by Uraume; participates in Kenjaku’s pact to bring ancient sorcerers into the future 24 50
Occupation/Role Dominant sorcerer of the Heian Era; antagonist and major combat target for Xia Xia 40 42
Status Timeline-dependent: abandons reincarnation in the Itadori-family simulation; destroyed by Gojo in a later simulated outcome; active in the Heian-era simulation 27 39 42 50
First Appearance Mentioned in the supplied text 4; first directly depicted encounter with Xia Xia 19

Power Progression

These entries distinguish temporary vessel strength from permanent changes to Sukuna’s power.

Stage / Realm / Level Chapter Notes
Below Grade 4 — child vessel 26 27 In the Itadori-family simulation, nine-year-old Yuji’s modified body leaves Sukuna only slightly stronger than an ordinary person. Healing and one Dismantle nearly exhaust its cursed energy.
Grade 4 — binding-vow enhancement 27 Gains cursed energy and escape speed by permanently surrendering the right to use Yuji as a reincarnation vessel.
Sixteen-finger incarnation 30 Xia Xia counts sixteen fingers within Yuji, including the finger he possessed from birth. Sukuna activates “Enchain” for one minute of control.
Permanently diminished incarnation 30 31 Xia Xia extracts one finger and severs its connection to Sukuna. The loss prevents Sukuna from returning to his former peak even if he obtains the remaining fingers.
Megumi-body incarnation with incomplete Ten Shadows 39 Possesses Megumi after his mental collapse and acquires Ten Shadows, but one Divine Dog is permanently missing. A binding vow briefly makes Sukuna’s body whole without restoring the stolen fragment of his power.

Background / History

According to the legends Wasuke Itadori tells his grandsons, Sukuna was born during the Heian Era to a farmhand’s wife. He devoured his twin before birth, escaping the division of fate and power associated with twins, and entered the world with two faces and four arms. In the Itadori-family simulation, Wasuke is identified as the reincarnation of that unborn brother 21 25.

Sukuna dominated Heian-era jujutsu society through overwhelming strength. The simulation’s account describes Japan as offering him only followers or food, while clans planned ritual offerings of commoners for him to slaughter and consume. He treated cannibalism as evidence of his superiority over other people 42 43 50.

Kenjaku later made a pact with Sukuna and other ancient sorcerers to bring them into a future era. In the Itadori-family simulation, Xia Xia discovers that Kenjaku has selected Yuji as Sukuna’s resurrection vessel and placed a finger within him 21 24.

Appearance

  • Original form: Two faces and four arms, described both in Wasuke’s legends and the Fujiwara Clan’s invitation 21 48.
  • Yuji incarnation: A second pair of eyes opens on Yuji’s face when Sukuna invokes “Enchain”; all four eyes are visible during his confrontation with Xia Xia 30.
  • Megumi incarnation: Retains Megumi’s face during the decisive battle with Gojo, who challenges him over that choice 39.

Personality

Sukuna is cruel, domineering, and openly predatory. He enjoys killing and eating humans rather than merely using violence to achieve another goal. In the Heian Era, even women and children become ingredients if they attract his interest, and those confronting him are expected either to submit or fight before dying 48 50.

His pride is tied to completeness and autonomy. During his flight from Xia Xia, he accepts sacrificing a future vessel because he cannot tolerate permanent mutilation or humiliation. He can endure death and a long wait for revival, but not the loss of part of himself 27.

Despite that pride, Sukuna is highly pragmatic when cornered. Trapped in a weak child’s body, he pleads for peace, impersonates Yuji to exploit Xia Xia’s attachment to his brother, blinds his pursuer with blood, and flees. Once safe, his internal commentary immediately returns to boasting about his newly gained Grade 4 strength 26 27.

He does not seek grand achievements or acclaim, but enjoys being the center of attention. The Fujiwara Clan therefore treats flawless festival preparations as essential: any displeasure could become his excuse for a massacre 50.

Abilities & Skills

Slashing Cursed Technique

Sukuna cuts targets with cursed energy. The Heian-era account attributes the technique’s extraordinary effectiveness to Sukuna’s own ability rather than unusual technical complexity 19 49.

  • Dismantle: A slashing attack distinct from Cleave. One use, combined with healing, nearly depletes his child vessel’s reserves 19 26.
  • Cleave: Outside a Domain Expansion, requires physical contact. It adjusts its strength according to the difference in jujutsu strength between Sukuna and his target to deliver a fatal strike 19.
  • Demonstrated kill: Cleave cuts Xia Xia in half and returns him to the Pure White Space 19.
  • Historical scale: Xia Xia’s acquired knowledge describes Sukuna’s slashes as capable of cleaving mountains 22.

Fire Techniques

  • Sukuna combines slashing with fire, including when preparing human flesh as food 49 50.
  • Xia Xia’s knowledge of his Heian-era atrocities describes flames capable of burning entire nations 22.
  • The supplied passages do not name a separate fire technique or establish its activation conditions.

Reverse Cursed Technique

  • Heals the severely injured nine-year-old Yuji after taking control of his body 26.
  • Healing remains constrained by the vessel’s available cursed energy; Sukuna cannot freely reproduce his historical strength through a weak host 26 27.

Domain Expansion: Malevolent Shrine

  • Clashes directly with Gojo’s Unlimited Void during their decisive battle 39.
  • Sukuna prepares a lethal finishing move after Xia Xia extracts his finger, but his one-minute control period expires before he can continue. The narration identifies Malevolent Shrine as his expected next move 30.

Incarnation and Vessel Control

  • Exists through cursed fingers and can take control of a host’s body 21 26 30.
  • “Enchain” activates an agreement granting him control of Yuji for one minute 30.
  • Exploits Yuji’s lowered mental defenses to launch a surprise attack on Xia Xia and Choso 30.
  • Later possesses Megumi and gains access to his innate technique 39.

Binding Vows

  • Attempts to exchange Yuji’s future health, potential, and lifespan for escape power fail because the modified body has nothing valid to offer 27.
  • Successfully exchanges his own future right to reincarnate through Yuji for cursed energy and speed 27.
  • Uses another vow to briefly make his Megumi-body incarnation whole, but cannot undo the permanent loss of Xia Xia’s stolen finger 39.

Ten Shadows Technique

Acquired through possession of Megumi Fushiguro 39.

  • Summons Eight-Handled Sword Divergent Sila Divine General Mahoraga against Gojo 39.
  • Uses Mahoraga’s adaptation to Blue in an attempt to prevent Blue and Red from combining 39.
  • Fires a water jet in the stance of Piercing Blood to intercept Red; Gojo redirects it with Blue 39.
  • The inherited technique is incomplete because one Divine Dog is permanently missing 39.

Weaknesses & Counters

  • Weak vessels: Nine-year-old Yuji’s limited reserves prevent Sukuna from overpowering Xia Xia despite his knowledge and experience 26 27.
  • Control limits: “Enchain” expires after one minute. Yuji’s interference and Sukuna’s injuries further disrupt his attack on Xia Xia 30.
  • Ryomen Sukuna’s Fear: Xia Xia’s simulation reward increases damage against Sukuna and permits percentage-based critical damage. It also prevents Sukuna from using binding vows in Xia Xia’s presence, offering Xia Xia as a vow’s price, or reincarnating through him 28.
  • Akashic Records: Xia Xia combines knowledge of Sukuna with the fear reward to extract a finger during temporary incarnation. Severing its connection inflicts severe mental damage and makes the power loss permanent 30 31.
  • No easy repeat: After Xia Xia fuses away Akashic Records, he acknowledges that defeating Sukuna through Yuji is still beyond him; the earlier finger extraction was not a straightforward victory in raw strength 40 42.

Equipment / Weapons / Items

  • Sukuna’s Fingers — Cursed objects that preserve his existence and enable incarnation. Xia Xia destroys the surfaced fingers in the Itadori-family simulation and permanently claims another during a later encounter 21 27 30 31.
  • Kamutoke — Identified as Sukuna’s personal weapon from his lifetime. The narration notes that Yorozu recreates it in the original story, but her death in the altered outcome prevents Sukuna from receiving it 38 39.

Relationships

  • Yuji Itadori — Vessel whose body Sukuna repeatedly takes over. In the Itadori-family simulation, Sukuna relinquishes the right to reincarnate through him and eventually leaves without causing casualties 26 27 30.
  • Xia Xia — Persistent enemy who induces fear, destroys or steals his fingers, and permanently damages his prospects of full restoration. Sukuna threatens to make him regret being born 27 28 30 31.
  • Megumi Fushiguro — Later vessel and source of Sukuna’s Ten Shadows Technique 39.
  • Uraume — Devoted subordinate and Ice-Frost Jujutsu Sorcerer. Xia Xia suspects Sukuna values the technique for preserving meat, but this remains his interpretation 49 50.
  • Yorozu — Obsessed admirer who once traded blows with Sukuna before being cut down. She regards him as perfect and measures other men against him 38 39.
  • Kenjaku — Ancient pact partner who prepares Yuji as a resurrection vessel 21 24.
  • Hajime Kashimo — Ancient sorcerer who seeks incarnation specifically to fight Sukuna, accepting death as a possible result 16 17.
  • Satoru Gojo — Modern-era rival who defeats the weakened Sukuna in the depicted December 24 battle 39.
  • Wasuke Itadori — Reincarnation of Sukuna’s devoured twin in the Itadori-family simulation; knows part of the resurrection plan 25.
  • Fujiwara Clan — Organizes a Heian-era coalition to kill Sukuna or secure a nonaggression pact 48 50.

Story Role / Major Arcs

First Encounter and the Itadori-Family Simulation

Sukuna first kills Xia Xia after taking over Yuji, using Cleave to bisect him. Because Yuji and Sukuna are treated as inseparable by Xia Xia’s simulation technique, selecting Yuji as a core character also brings Sukuna into the special simulation 19.

In that simulation, Xia Xia stages a lethal pursuit of his younger twin to force Sukuna into a binding vow. Sukuna escapes, but sacrifices his right to use Yuji as a reincarnation vessel. After Xia Xia destroys the other surfaced fingers, Sukuna falls silent, eventually leaves Yuji, and chooses to become a curse rather than revive 26 27.

Finger Extraction and Defeat by Gojo

During a later encounter, Sukuna invokes “Enchain” while Yuji is distracted by shared childhood memories. Xia Xia withstands his slash, opens Death-Bound Curse, and uses the Crystal Engraving Knife to extract a finger. Sukuna loses control before he can retaliate decisively 30.

The ensuing simulated outcome preserves that loss. Xia Xia dies fighting Yorozu, taking the stolen finger with him, while Yorozu’s death denies Sukuna Kamutoke. Sukuna still possesses Megumi, but faces Gojo with both his own power and Ten Shadows incomplete 39.

On December 24, Gojo opens with a two-hundred-percent Hollow Purple. He later exploits Mahoraga’s immunity to Blue’s attraction to outmaneuver it, redirects Sukuna’s water attack, and combines Blue with Red. The resulting Hollow Purple reduces Sukuna to dust 39.

Return to the Heian Era

After discarding Akashic Records, Xia Xia selects Yorozu’s special simulation and enters the era of Sukuna’s original dominance. The opening of the next chapter places Ashiya Xia Xia after a battle with Sukuna, but does not detail that confrontation 42 43.

Following Ashiya Xia Xia’s return through time, the Fujiwara Clan recruits him into its anti-Sukuna coalition. He negotiates to confront Uraume instead of Sukuna and secretly infiltrates the estate’s sacrificial formation with cursed spirits. By the end of the supplied material, preparations for Sukuna’s festival remain underway; the coalition’s battle has not been resolved 48 49 50.

Notable Quotes

“In exchange for never... never being able to use this person as a vessel to reincarnate, I demand cursed energy and speed.” 27

“Until my cursed energy runs out... I will never be caught!” 27

“The next time we meet, I’ll make you regret living in this world. I’ll make you regret being born.” 30

Appearances

215
Total Mentions
29
Chapters Appeared
7.41
Avg. per Chapter