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I must admit, I am fast.
— Flashy Flash

Flashy Flash (閃光のフラッシュ, Senkō no Furasshu) is the S-Class Rank 13 professional hero of the Hero Association. He is a former member of the Ninja Village's 44th Graduation Class: "The End".

Warning The following section contains Webcomic spoilers. You have been warned, manga-only readers.

He's also one of the few people who are aware of Saitama's true power and is currently trying to make Saitama his disciple in order to teach him proper hand-to-hand combat.


Flashy Flash is a young man with an androgynous appearance. He has sharp blue eyes and long ice-blonde hair with bangs brushed to the right side of his face.[2] He wears a dark blue bodysuit with metallic bracers over his arms and upper chest armor with a long white cape over it. He adorns himself with two eight-pointed stars on either side of his head and on his cape. He has a chain strapped around his waist that holds his sheath and sword in place.


He is a calm and serious man, immediately starting the topic of discussion at the meeting and stopping an argument between Tatsumaki and Metal Bat. He also appears to be quite arrogant, telling lower-ranked heroes to step aside and let him handle the Mysterious Being because he sees them as weak, berating them for potentially causing collateral damage. He is also very confident in his abilities.

Flashy Flash is one of the few heroes who doesn't fear Tatsumaki, talking back to her after she insulted him, stating that she stole his kill against the Hundred-Eyes Octopus, and even went as far as to say that she is not actually stronger than him.

He has a very firm mindset that training is one of the only ways to become truly strong, as he told Gale Wind and Hellfire Flame he only became as powerful as he was through training more than any other heroes or ninja. When the two monsters were dying, they asked Flashy Flash what it was that they were missing, and his response was their lack of training. In a sense, this is similar to Saitama, as he also believes training is the only way to become truly strong.

While normally prideful and rude, he did compliment Saitama after witnessing his strength and speed. When he attacked Saitama under the suspicion of being a monster, he was stunned when Saitama avoided his first attack. Though he remembered who Saitama was, he wanted to confirm if he could actually dodge his attacks as his pride wouldn't allow such a thing, making him attack Saitama again, which was actually an unnecessary endangerment of his life.

Warning The following section contains Webcomic spoilers. You have been warned, manga-only readers.

After secretly witnessing Saitama defeat Garou, he begins to admire him and wishes to train him since he is aware Saitama is incredibly strong, but lacks technique.

In terms of combat, due to being a ninja, he prefers quick and efficient strikes that can kill or defeat opponents as fast as possible before they can react. Therefore, because of this philosophy, despite acknowledging Saitama's immense prowess and speed, Flash still looks down on him as Saitama often gives his opponents a chance to attack him and doesn't kill or defeat his opponents quickly or efficiently. 

Even though he has a rough exterior, he is merely a victim of the horrendous training of the Ninja Village, where he was forced to hide and completely remove himself from his emotions. As a child, Sonic could tell that Flash had a burning passion for freedom similar to Sonic, demonstrating that despite his mediocre rating of 5 for Justice on his Hero Rating, he has a burning passion for justice. This was why when he was 16, he finally decided to eliminate everyone at the Ninja Village and remove its evil roots.

Abilities and PowersEdit

As an S-Class hero, Flashy Flash is extremely powerful. In terms of speed, Flashy Flash is arguably the fastest S-Class hero in the association. He can battle against two powerful Dragon level monsters known for their remarkable speed, Hellfire Flame and Gale Wind, simultaneously without sustaining any heavy damage or visible fatigue. He is also the former No.1 of the 44th graduating class of the village that Speed-o'-Sound Sonic hails from. Flash is one of the few S-Class heroes capable of defeating and killing multiple Dragon level monsters singlehandedly, as he was able to kill Hellfire Flame and Gale Wind in their monster forms without suffering any significant damage, although he needed to use his finishing move to eliminate them. His power is so great that even the resurrected Phoenix Man, a now dragon-level monster capable of bringing other monsters back to life and toying with Child Emperor's trump card Brave Giant, feared the thought of facing him.

Warning The following section contains Webcomic spoilers. You have been warned, manga-only readers.

He can defeat Demon level monsters without suffering a single injury, and according to Superalloy Darkshine, if Garou were to fight Flash, he would most likely die before being able to show any of his techniques. Garou himself admitted that, if the two of them had fought before his evolution, it would have "ended ugly" for him.[3] At age 16, he was strong enough to eliminate everyone in the village singlehandedly albeit with very heavy injuries, an extremely impressive feat considering the strength of all the ninja in the village.[4] When fighting against the Heavenly Ninja Party, together with Speed-o'-Sound Sonic, they were able to kill all 21 ninjas, with Flash sustaining no visible injuries.

Physical AbilitiesEdit


Flashy Flash's immense speed

Immense Speed and Reflexes: Flashy Flash lives up to his name, as he is able to land multiple attacks in under 0.01 seconds. His speed leaves powerful shock waves in his wake. He was able to travel to Hundred-Eyes Octopus, a Demon-level Mysterious Being, and slash the monster's eyes in a short amount of time using his incredible speed. During the initial attack against the Monster Association, Flashy Flash killed some monsters so quickly that even Shadow Ring couldn't see what happened. He was able to casually keep up with two Demon-level monsters in their human form, Hellfire Flame and Gale Wind, only taking some pressure when they transformed into their Dragon-level monster form, and was able to kick them at speeds they were unable to counter. 

Warning The following section contains Webcomic spoilers. You have been warned, manga-only readers.

During his fight against Awakened Garou, he was able to complete a string of attacks in under 0.01 seconds. He dispatched Gale and Hellfire, two Disaster Level Demon mysterious beings who take great pride in their speed, before any of them could understand what had happened. He is the only S-Class hero who managed to dodge at least one of Garou's attacks. Apparently, Flash can move faster than his own reflexes can follow, as he realized Saitama was human only after attacking him and failed to notice Garou had blocked his punches until after the combo had ended.

However he cannot keep up his immense speed for long as during his fight with Saitama, the A-Class hero noted he was "wobbly" after executing all of his attacks in quick succession. He was able to dodge multiple attacks from Saitama during their sparring match, although Saitama claimed they were only playing "tag", and Saitama admittedly had many wasted movements.[3]

Immense Strength: Flashy was shown to be strong enough to combat and kill two Dragon Level threats simultaneously. He can deliver powerful kicks that can stun Dragon levels monsters. He can also easily cut massive pieces of stone and create giant explosions throughout his fighting. Additionally, the large crevice where he was battling Gale Wind and Hellfire Flame was completely destroyed as a result.

Immense Durability: Flashy Flash took numerous direct hits from two fully powered Dragon-Level monsters at once without any serious damage, only coughing up small traces of blood.

Warning The following section contains Webcomic spoilers. You have been warned, manga-only readers.

Flash was hit by Garou and was able to get up, a feat most of the other heroes were unable to do.[3]

Fighting StyleEdit


Flashy Flash's sword

Ninjutsu Master: According to Zombieman, Flashy Flash is rumored to be one of the S-Class' best in terms of fighting capability. He seems to be an exceptionally skilled swordsman, killing the Hot Rod Brothers before either of them had the chance to react or even notice him. (web-comic only) Flash also possesses advanced movement and unarmed combat techniques, proving to be a versatile fighter and held enough confidence in them to teach Saitama proper hand-to-hand combat techniques.[3] Gale Wind noted that Flashy Flash's technical precision surpassed both his and Hellfire's.[5] Flashy Flash also states that he has trained more than any other ninja from The Village.[6]

  • Flowing Shadow Feet (流影脚, Ryūei Kyaku): By moving even faster than usual, Flash creates a series of afterimages which blend together in a blurred band, making it difficult to predict where his next attack will come from.[3]
  • Wind Blade Kick (風刃脚, Fūjin Kyaku): Flash throws himself at his foe and does a front flip, during which he throws his foot out to kick his opponent, using the momentum of the flip.[7]
  • Heavy Flashy Slash (重閃斬, Jūsenzan): Flashy Flash thrusts his sword forward multiple times to pierce through his target. This technique was used to break Hellfire Flame's sword.[8]
  • Flashy Kicks (閃光脚, Senkō Kyaku): Flashy Flash delivers a kick numerous times at incredible speed. They contain enough power to stun two Dragon-level monsters.[9]
  • Spinning Top Slide (独楽滑り, Koma Suberi): A spinning dodge, Flash uses the rotations to swerve out of the way of an attack. The technique can be done from a standstill and was fast enough to avoid a casual blow from Saitama.[3]
  • Falling Leaves Barrage (落葉乱れ打ち, Rakuyō Midare-uchi): Flashy Flash attacks the enemy with a salvo of open-handed slaps, obscuring their view.[3]
  • Blue Tempest Fist (青嵐拳, Seiran-ken): Flash attacks with a rapid, swirling barrage of punches, his arm forming afterimages.[3]
  • Dragon Thrust Kick (龍突脚, Ryūtotsu Kyaku): Flash utilizes a downwards, thrusting kick from midair.[3]
  • Misty Mantle (霧包, Muhō): Flashy Flash uses his cape as a distraction as he follows up with an attack.[3]
  • Falling Moon Palm (隕月掌, Ingetsu-shō): Flashy Flash rotates his hands at an incredible rate as he thrusts them forward. He uses this attack as a follow up to Misty Mantle.[3]
Flashy Slash

Flashy Slash

  • Ultimate Techniques (絶技, Zetsugi): Flashy Flash's set of ninjutsu techniques unique to him.
    • Flashy Slash (閃光斬, Senkōzan): Flashy Flash's ultimate technique.[10] The technique allows Flashy Flash to move at unimaginable speeds toward his opponents, slashing them before they have any time to react, even against superb ninjas like Hellfire Flame and Gale Wind. Furthermore, this technique can be used to cut his opponents in half or decapitate them. Before Saitama, no one had ever been able to dodge it.[3]

Warning The following section contains Webcomic spoilers. You have been warned, manga-only readers.

    • Flashy Fist (閃光挙, Senkōken): In under 0.01 seconds Flashy Flash traverses the distance between himself and his opponent and unleashes a barrage of punches.[3]
    • Flashy Kick (閃光脚, Senkō ashi): Flashy Flash delivers a very swift kick to his opponent. First used against Sonic, and to Flash's surprise, Sonic was able to block the kick.
  • Forbidden Techniques: According to Flashy Flash, the hero has knowledge of forbidden techniques he was either taught at The Village due to his amazing power or he secretly learned about without permission. Although never used, it can be assumed these techniques are extremely deadly and even more dangerous than Flashy Flash's Ultimate Techniques. During his sparring match with Saitama, the ninja noted that there wasn't enough time to use his forbidden techniques since he was being cornered by Saitama.[11]


Katana: Flashy Flash wields a katana with a round guard called Instakill (瞬殺丸, Shunsatsumaru). He is very skilled in using it in combat, as he defeated two Dragon-level monsters with it.

Warning The following section contains Webcomic spoilers. You have been warned, manga-only readers.

It was broken by Saitama during the raid on the Monster Association Headquarters after Flash mistakes Saitama for a monster.[3]The sword is broken again by Saitama with his teeth during the sparring session with Flash. Saitama plans to get Flash another katana so they will be even and Flash won't ask Saitama for any favors. 

Kunai: Flashy Flash wields a kunai as a secondary weapon.

Waterproof Cape: Flashy Flash wears a waterproof cape which he uses to shield himself from liquids, as shown when he attacks the Hundred-Eyes Octopus, where he flicks the monster's blood cleanly off of it.

Hero RatingEdit

Flashy Flash's rating determined by the Hero Association[1]:

Ability Type Stamina Intelligence Justice Endurance Power Popularity Effectiveness Fighting Ability Total


  • "Money can only motivate those who are weaker than money itself. Such people are worth less than nothing in battles against monsters."[12]
  • "I do not recall boasting my speed like a minor character."[13]
  • "What is the point of all that speed if your brain can't keep up."[14]
  • "The more outstanding the fighter, the more set he is in his original ways."[15]
  • (To Hellfire Flame and Gale Wind) "Your training is lacking."[16]


  • During a Q&A section of the original webcomic, ONE was asked if there was a relation between Speed-o'-Sound Sonic and Flashy Flash, but he avoided answering the question.
    • Murata later revealed during a stream that Sonic and Flashy Flash were "somewhat" related. Chapters 78 and 95 confirmed this directly, revealing that the two were from the Ninja Village's 44th graduation class, "The End."[17]
  • Flashy Flash suggested his own hero name.[1]
  • Flashy Flash is the first S-Class hero shown to defeat a categorized Dragon-level Mysterious Being on his own, given that Melzargard was defeated by the combined efforts of Silverfang, Metal Bat, Atomic Samurai, and Puri-Puri Prisoner, and every other Dragon-level monster prior was defeated by Saitama.
  • Flashy Flash has the lowest known "Justice" rating out of all the S-Class Heroes: 5.


  1. 1.0 1.1 1.2 1.3 1.4 One-Punch Man Encyclopedia; One-Punch Man: Hero Perfection, page 64
  2. One-Punch Man Manga; One-Punch Man Holiday Special Chapter
  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 One-Punch Man; Original Webcomic
  4. One Punch Man Webcomic; Chapter 115, Page 6
  5. One-Punch Man Manga; Chapter 96, page 8
  6. One-Punch Man Manga; Chapter 96, page 9
  7. One-Punch Man Manga; Chapter 95, page 27
  8. One-Punch Man Manga; Chapter 96, page 6
  9. One-Punch Man Manga; Chapter 96, page 23
  10. One-Punch Man Manga; Chapter 96, page 24
  11. One-Punch Man Webcomic; Chapter 113, page 20
  12. One-Punch Man Manga; Chapter 90, page 16
  13. One-Punch Man Manga; Chapter 95, page 20
  14. One-Punch Man Manga; Chapter 96, page 8
  15. One-Punch Man Manga; Chapter 96, page 10
  16. One-Punch Man Manga; Chapter 96, page 33
  17. One-Punch Man Stream; Early 2016


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