Flashy Flash

Your head is mine!

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, nicknamed "The End."

He is also one of the few people aware of Saitama's power.

Despite that, he noticed Saitama's lack of proper combat techniques and now intends on making him his disciple.

Appearance
Flashy Flash is a lean but muscular young man of average height with an androgynous appearance. He has sharp blue eyes and long ice-blonde hair with bangs brushed to the right side of his face. 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.

Personality
Flashy Flash 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.

Despite his collected composure, Flashy Flash has a tendency to be hasty and reckless. His careless attack on Hundred-Eyes Octopus only made the beast cause more destruction, and he has other lapses in judgment such as losing his communicator during the Monster Association raid or attacking Saitama even after recognizing him as a hero.

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.

However, he is incredibly respectful of those he deems strong and is more than willing to give praise to such individuals. An instance of this is when he and Saitama work together with a monster to find the Monster Association's inner sanctum. In a gold mine, he defends against a series of larger monsters' attacks. Unbeknownst to him, Saitama does so as well and keeps an equal pace to him. He is astounded and impressed by Saitama's strength, calling him "Pretty good."

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 Powers
As an S-Class hero, Flashy Flash is very powerful. In terms of speed, Flashy Flash is arguably the fastest S-Class hero in the association, though he seems to be outmatched against the top-ranked S-Class hero Blast. He is the former top ninja of the 44th graduating class of the village that Speed-o'-Sound Sonic hails from. Flashy Flash is also one of the few S-Class heroes capable of defeating multiple Dragon-level monsters singlehandedly, as he was able to kill Hellfire Flame and Gale Wind, two powerful Dragon-level threats known for their remarkable speed without sustaining any significant damage or visible fatigue, although he needed to use his finishing move to eliminate them. According to Darkshine, if Garou were to fight him, he would most likely die before being able to show any of his techniques.

Flashy Flash is also a very analytical fighter. He strategically waited for the right moment to incapacitate Gale Wind and Hellfire Flame simultaneously to prevent either from escaping, reasoning that the other heroes would have trouble with the ninjas' speed. He was also able to discern Saitama's physical attributes by analyzing the sound of his footsteps.

He can defeat Demon-level monsters without suffering a single injury. Garou himself admitted that, if the two of them had fought before his evolution, it would have "ended ugly" for him. 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. 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 Abilities
Immense Speed and Reflexes: Flashy Flash possesses incredible speed and reflexes, surpassing most characters in the series. 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 the blink of an eye using his incredible speed. During the initial attack against the Monster Association, Flashy Flash dispatched some monsters so quickly that Shadow Ring, a fellow ninja, could not see what happened. He was able to easily keep up with two Demon-level monsters known for having remarkable speed, Hellfire Flame and Gale Wind in their human forms, only taking some pressure when they transformed into their Dragon-level monster forms and was able to kick them at speeds they were unable to counter. After having stunned Gale Wind and Hellfire Flame with a barrage of fast kicks, he managed to cross a great distance and perform one of his ultimate techniques, Flashy Slash, slicing the two Dragon-level monsters in half before they could even react, and his actions were so fast that they seem to happen almost at the same time. Flashy Flash's speed was also remarkable enough to impress Saitama, with the bald hero stating he was "kinda fast".

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 either 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 failed to notice Garou had blocked his punches until after the combo had ended.

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.

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-level 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.

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

Enhanced Senses: Flashy Flash was capable of estimating that Saitama's weight was around 70 kg just based on the footsteps, and also realized that his presence didn't match that of any member gathered there.

Fighting Style
Ninjutsu Master: Gale Wind noted that Flashy Flash's technical precision surpassed both his and Hellfire's. Flashy Flash also states that he has trained more than any other ninja from The Village.
 * 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.
 * 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.
 * 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.
 * Maximum Speed Flashy Kicks: Flashy Flash delivers multiple kicks at his fastest speed. Flashy Flash first uses this to test Blast's abilities, but the hero is easily able to dodge the attack.


 * 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. 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.

According to Zombieman, Flashy Flash is rumored to be one of the S-Class's best in terms of fighting capability. He 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.


 * 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.
 * 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.
 * 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.
 * 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.
 * Blue Tempest Fist (青嵐拳, Seiran-ken): Flash attacks with a rapid, swirling barrage of punches, his arm forming afterimages.
 * Dragon Thrust Kick (龍突脚, Ryūtotsu Kyaku): Flash utilizes a downwards, thrusting kick from midair.
 * Misty Mantle (霧包, Muhō): Flashy Flash uses his cape as a distraction as he follows up with an attack.


 * 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.


 * 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.


 * Surging Wind Blade Kick (波濤風刃脚, Hatō Fūjin Kyaku):


 * 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.
 * Sky Ripping Scattered Flash Slash (裂空散閃斬, Rekkū Sansenzan): Flashy Flash creates powerful hurricanes which he can control by spinning his sword at incredible speeds. This technique is very powerful, being able to quickly eliminate Heavy Smoker, a dragon-level threat, and Tanktop Master was baffled by how easily Flashy Flash took down the monster.

Equipment
Katana: Flashy Flash wields a katana with a round guard called Instakill (瞬殺丸, Shunsatsumaru, Viz: Flashkill). He is very skilled in using it in combat, as he defeated two Dragon-level monsters with it. The sword was broken when Flashy Flash was trapped under a cave-in and its blade got stuck in the rock, which Tatsumaki ripped out of the ground.

The sword was broken again by Saitama with his teeth during the sparring session with Flash. This caused Saitama to begin planning to get Flash another katana so that they will be even and Flash won't ask Saitama for any favors.

Katana: Saitama stole two katanas from the Ninja Village Leader called Legendary Demon Swords (伝説妖刀, Densetsu Yōtō) and gave them to Speed-o'-Sound Sonic and Flashy Flash.

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 Rating
Flashy Flash's rating determined by the Hero Association:

Quotes

 * "A mediocre force like this... will just upset the octopus and cause more damage"
 * "Money can only motivate those who are weaker than money itself. Such people are worth less than nothing in battles against monsters".
 * "I've never boasted about my speed, that's what sidekicks do. Although truth be told, many have said that my battles are over before they even began".
 * (To Hellfire Flame) "Too slow. What is the point of all that speed if your brain can't keep up?"
 * "The more outstanding the fighter, the more set he is in his original ways".
 * (To Hellfire Flame and Gale Wind) "Your training is lacking".
 * (To Saitama) "Hmph. You're pretty damn good".


 * "The main protagonist always shows up last to leave an impression".

Trivia

 * According to the databook:
 * Flashy Flash chose his own hero name.
 * 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."
 * 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 Bang, 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 at 5.
 * In the 2017 One Punch Man Halloween cover, Flash was depicted as a kitsune, a Japanese spirit resembling a nine-tailed fox said to be able to disguise itself as a beautiful woman, in reference to Flash's feminine appearance.

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