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Ninja Gaiden Wiki
The ninja way knows neither good nor evil.
Race Fiend; Formerly Human of Fiend bloodline
22px-Flag of Japan.svg.png
Gender Male
Relatives Gamov (younger brother; deceased)
Professional Status
Affiliation Black Spider Ninja Clan
Vazdah's Fiend Tribe
Occupation Ninja Warlord
Rank Master Ninja
Title Supreme Ninja Warlord
Lord of the Dark Ninja
Previous Partner Elizébet (deceased)
Inukoma (deceased)
First Appearance
Debut Ninja Gaiden II
Japanese Voice Ryūzaburō Ōtomo
English Voice Neil Kaplan

The Supreme Ninja Overlord Genshin (邪忍王 玄心 Janinou Genshin; Evil Ninja Ruler Genshin) was the iron-willed Ninja Warlord of the defunct Black Spider Ninja Clan. He was Ryu Hayabusa's main rival in Ninja Gaiden II and its derivatives, where they fought multiple times.


Genshin is a tall middle age man with medium build. He has an eyepatch covering his injured right eye. His outfit is a mix of traditional gi and armor, consisting of heavy tabi boots, ninja pants, fully armored upper body, armored gauntlets, ninja claw on the right arm, and a multi eyed shinobi helmet.


As Warlord of the Black Spider Clan, Genshin was the most powerful and ruthless Ninja that the clan has ever produced. Genshin's cold and calculating composure, as well as his lust for power is matched only by his hatred of the Dragon Lineage.

Despite the many atrocities he and his clan commit, Genshin was revealed to be an honorable shinobi, as everything he did, from joining the Fiends to becoming a demon himself in hopes of ending the Dragon Bloodline, he did solely for his clan's future; a sentiment his rival Ryu Hayabusa easily related to him with.



Genshin was born a member of the Black Spider Ninja Clan, and the older brother of Gamov. At some point in the aftermath of the Dark Dragon Blade Incident, he gained a hatred of the Dragon Lineage after learning that Murai, a former member of the Hayabusa Ninja Clan and connected to the Dragon Lineage through his his sister's marriage with Jô Hayabusa, killed his younger brother.[1]

At some point, he would befriend Inukoma, who was the closest thing he had to an apprentice in the clan and also a figure of admiration for the former.[2]

Leadership of the Black Spider[]

After becoming leader of the Black Spider Clan, he was approached by Elizébet with promises of power that will allow the clan to finally possess superiority over the Hayabusa Ninja Clan. Despite his hesitation and some of his own clan member's protest, he agreed into an alliance with the Greater Fiend.[3]


Ninja Gaiden Sigma 2[]

Genshin, Master Ninja of the Black Spider Clan, has grown weary of his clan playing second fiddle to the Hayabusa Ninja Clan, his hatred for the Dragon Lineage now reaching its peak. One day, he meets the mysteriously beautiful yet demonic Elizebet; Queen of the Greater Fiends, who promises to help him bring his clan to greatness in return for his services. Genshin hesitantly accepted, seeing this as an opportunity to destroy the Dragon Ninja once and for all.

He sends his student and Black Spider Middle Ninja, Shadow Ninja Rasetsu of the Dark Sect to Tokyo to distract Ryu Hayabusa, while he and an army of Black Spider Ninja attack the Castle of the Dragon. He duels Ryu's father Joe Hayabusa in the castle keep, defeating Joe and steals the Demon Statue, the artifact that the Hayabusa clan has guarded for millennia. Ryu bursts through the door to see his father fall through the floor. As Genshin gives Elizebet the Demon Statue, he duels Ryu and nearly kills him before Joe interferes and orders Ryu to recover the statue. He fights Joe and leaves him in critical condition before leaving.

Meanwhile, on the way to deliver the Statue to the Infernal High Priest in his sky fortress, the Daedalus, Genshin leaves the control room after watching Ryu and the C.I.A. agent Sonia damage the vessel. Genshin encounters Ryu and fights him again in the cargo hold, but their duel is inconclusive once again as the Daedalus splits in two, with Genshin on one half and Ryu and Sonia on the other.

In South America, Genshin observes the Fiends performing their blood rituals to begin reviving the Archfiend, and after Ryu defeats Elizébet he tells Ryu that the Archfiend shall resurrect himself in Japan, under the sacred peak of Mt. Fuji, and that there is where Ryu will die before taking his leave to await for Ryu at the ancestral site of both their clans.

When Ryu arrives sometime later, Genshin fights Ryu at the top of the erupting summit for the final time, but is killed. After Ryu has departed for the interior of the mountain, Elizébet appears and transforms the Ninja Overlord into a Greater Fiend.

Genshin, transformed into a Fiend fighting Ryu Hayabusa.

With this newly obtained, incredible power, Genshin follows Ryu into the depths of the Netherworld and challenges him again, but in his transformed state he is little more than a raging beast. Despite the demonic power that Elizébet had given him, Genshin is defeated by the Dragon Ninja, his cursed body slain by the awakened True Dragon Sword. With his dying breath, Genshin regains himself and he tells Ryu that he has no regrets for what he's done, just as Ryu fought to uphold the Dragon Ninja legacy of justice, Genshin fought for the future of his clan. Acknowledging Ryu as a true Ninja, he gives him his cursed sword, the Blade of the Archfiend and dies, his soul redeemed.

Elizébet chastises the dead Ninja for losing for the sake of his clan's honor. Enraged by this disrespect towards the Ninja Overlord, Ryu kills her with the Dragon Sword and the Blade of the Archfiend and would use Genshin's blade with his own in his final battles with the infernal priest, Dagra Dai, and the reawakened Archfiend, Vazdah. Once the battle was finally over, Ryu would impale the Blade of the Archfiend in the ground to serve as a gravestone to Genshin in the Black Spider Ninja Graveyard at the summit of Mt. Fuji.

Ninja Gaiden 3: Razor's Edge[]

Genshin makes a small but significant appearance in Ninja Gaiden 3.

On the fifth day, Ryu returns to his village, but before this, he arrives at the summit of Mount Fuji, and heads for where he left Genshin's Blade of the Archfiend. Recalling his past encounter with the Ninja Overlord, Ryu draws the blade and takes it up once more, asking to use the Lord of the Dark Ninja's soul this one time, in place of his lost Dragon Sword.

On the seventh day, after Canna transforms into the Goddess and Ryu is left for dead in the ocean, the spirit of Black Spider Ninja leader appears before Ryu in a dream, once more handing over the Blade of the Archfiend to the Dragon Ninja with an approving smile, this act reawaking the soul of the Blade of the Archfiend, restoring its true power to use in the coming battle against The Goddess.

Powers & Abilities[]


Genshin is hailed as one of the two people (other being Ryu Hayabusa) to have gained the title of Super Ninja, a title meant only for exceptional ninja whom managed to attain powerful Ninpo and a mastery in archery, martial arts, and swordplay.[4] Wielder of the Blade of the Archfiend, Genshin is also recognized among the clan as the most ruthless and powerful of the Black Spider Ninja Clan.[5]

  • Master Swordman: Genshin is a powerful master swordsman, wielding the legendary Blade of the Archfiend with utmost mastery in a reverse grip. He could against Jô Hayabusa who was weakened from a battle with a previous foe and subsequently overpowered him. He could fight equivalently against fellow Super Ninja Ryu Hayabusa in a sword fight twice, and was only defeated when the latter used the True Dragon Sword.[3]
  • Martial Arts: Genshin possess sufficient hand-to-hand combat skills to use his claw in conjunction with his swordsmanship in combat and is considered a master in this skill.[3][4]
  • Archery: Although not having been seen sporting a bow and arrow, his title as a Super Ninja implies he is a master archer in his own right.[4]
  • Agility: Genshin's speed and agility is top notch, being on par with Ryu.[3]
  • Strength: Genshin's strength is seemingly superhuman enough to clash equally with Ryu Hayabusa and overpower a weakened Jô Hayabusa.[3]
  • Acrobatics: Genshin is capable of performing complex, acrobatic movements in combination with his swordplay and backflips to dodge attacks.[3]
  • Ki Manipulation: Genshin possess a mastery in using Ninpo, able to cast the Art of the Piercing Void.[3]
Fiend Genshin
  • Pyrokinesis: After becoming a Fiend, Genshin can control fire.[3] He can use it with his sword to prevent a complete block (the target taking damage despite blocking his attack) and have, short lasting damage.[6]
  • Fire Arrows: Fiend Genshin can shoot several burning arrows.[3]
  • Ground Pound: Fiend Genshin can strike the ground, causing a circular area around him to erupt with fire.[6]
  • Teleportation: In his Fiend form, Genshin can teleport short distances towards an opponent.[6]


  • Essence Technique/Ultimate Technique: Genshin is mentioned to have master such an attack, making him capable of performing up to two quick dashes and perform devastating combos.[3]
  • Flying Swallow: A attack in which Genshin jumps forward into the air and propels himself at his opponent in a lightning fast slash.[3]
  • Underworld Drop: A technique in which Genshin launches his enemy in mid-air, stabbing them, and then performs a vertical spinning similar to the technique Blade of Nirrti. After slamming the enemy down onto the floor, they jump away while removing his blade.[3]
  • Dash Attack: Genshin is capable of a dash attack similar to Ryu's Reverse Wind/Furious Wind technique; he moves fast enough to leave a trail of afterimages.[3]


  • Art of the Piercing Void: Genshin is capable of casting this ninpo, forming the energy using gravitational waves propagated from his conscious spirit, resulting in a rotating black hole trapped inside a semi permeable spiritual force field that keeps it stable.[3]


  • Blade of the Archfiend: An evil katana containing the magic of the Archfiend that rivals the likes of the Dragon Sword. The blade is given to only the most powerful and ruthless member of the Black Spider Ninja Clan.[3]
  • Shuriken:Genshin's arsenal includes shurikens located on this thighs in which can be thrown.[3]
  • Falcon's Talon Claw: Genshin bears a Falcon's Talon Claw on one of the hands, using it in combination with his Blade of the Archfiend and Hand-to-Hand skills.[3]


  • "How the vaunted Dragon Ninja Bloodline has withered Jô Hayabusa." - Genshin taunting Jô.
  • "Evil? The ninja way knows neither good nor evil." - Genshin's response to Jô Hayabusa.
  • "Enough talk. The ties that bind our clans are severed tonight. You will be bloodstains on my blade!" Genshin, dueling Jô Hayabusa.
  • "Calm yourself, Elizébet. I will handle this." Genshin, leaving to confront Ryu on the Fkying Fortress Daedalus.
  • "Young blood, how many times must you stand in our way?" - Genshin to Ryu, aboard the Flying Fortress Daedalus.
  • "So, Dragon Ninja. Would you like to know… Where the Archfiend will be reborn? A place that has bound our clans since time immemorial. More precisely… The peak of Mount Fuji!" Genshin, informing Ryu of the location of the Archfiend's impending rebirth.
  • "The tantrums of the Archfiend never concerned me. All paths before me are cruel and arduous. Our time has come. You lifeblood shall spill, and YOU SHALL DIE!" Genshin, beginning his final duel with Ryu at the peak of Mount Fuji.
  • "Are you there... Dragon Ninja? All grows dark... and silent... I have staked my name... I have fought with all of my being... All to forge a future for the Black Spider Clan... I have no regrets... Just as you have fought for a cause greater than yourself... so too... have I...Dragon Ninja... take my cursed blade..." - Fiend Genshin's final words after his defeat in the Underworld.


  • Genshin is a popular figure in the Black Spider Ninja Clan, the majority of the entries on the subject of Genshin expressing respect and happiness in his ascension as head of the Black Spider Ninja Clan. In one entry, he is referred to as a "badass" and multiple figures in the clan aspire to be as skilled as him.[3]
  • Izo's entry in his notebook on April 19 revealed that he learned that Genshin's source of animosity for the Dragon Ninja and his family is because Gamov was killed by Murai, a former member of the Hayabusa Ninja Clan whom has ties to the Dragon Lineage family.[3]
  • Genshin's name in kanji means "Mysterious Heart".
  • In the Japanese dubs, Genshin is almost never referred to by name, but rather as "Janinou" which translates to "King of Evil Ninja", "Evil Ninja" most likely a reference to the Black Spider Clan.
  • Genshin and his Fiend form are featured as bosses in the Tests of Valor for Days 5, 6 and 8 in Ninja Gaiden 3: Razor's Edge.
  • Genshin can be attacked by any air combo throws (Izuna Drop, Underworld Drop, River Styx Drop, etc) as long as you can launch him into the air.


  1. Ninja Gaiden Sigma 2 - Izo's Notebook
  2. Ninja Gaiden Sigma 2 - Inukoma's Noteboook
  3. 3.00 3.01 3.02 3.03 3.04 3.05 3.06 3.07 3.08 3.09 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 Ninja Gaiden 2/Ninja Gaiden Sigma 2
  4. 4.0 4.1 4.2 Ninja Gaiden 3 Unmasked Art Book
  5. Ninja Gaiden 2 - True Dragon Sword and Blade of the Archfiend description
  6. 6.0 6.1 6.2 Ninja Gaiden 3: Razor's Edge