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Saitama

Voiced by: Makoto Furukawa (Japanese), Max Mittelman (English), Victor Ruiz (Latin American Spanish), Dario Torrent (European Spanish), Orelsan (French)

Debut: Chapter 1 (Webcomic & Manga), Episode 1 (Anime)

https://static.tvtropes.org/pmwiki/pub/images/saitama_anime_0.png
Click here  to see Serious Series: Saitama

"Just a guy who's a hero for fun."

Originally an ordinary aspiring salaryman, Saitama was inspired to become a hero when he managed to save a big-chinned boy from a monster crab with nothing but his necktie. He trained for three years doing an ordinary if fairly intense regimen until his powers awoke and he lost all of his hair. Now he's become so powerful that, no matter the opponent, he can defeat them with a single punch. Because of this, he's grown bored with his life of super-heroism.

What Saitama doesn't know is that the big-chinned boy he saved all those years ago was the grandson of a multi-millionaire, who founded the Hero Association when he found out about the incident.


  • The Ace: A highly downplayed example, almost towards an inversion. While the entire public is ignorant of Saitama and his achievements, very few individuals who are aware of his true prowess revere him as one. Saitama single handedly broke all preexisting records in the Hero Association's physical examinations, and in just over 65 days went from C Class to A Class. On a regular basis, Saitama can achieve several feats which surpass those of all S Class heroes. A recurring theme in the manga is that, in any given arc, Saitama almost always defeats the strongest antagonist/opponent of that arc. See World's Strongest Man below.
    • Doubly inverted. While Saitama looks unimpressive and is far from being the Ideal Hero, he is the most powerful hero who always wins. Only two beings ever came close to his power and Saitama defeated both of them. Not to mention, he is unusually perceptive about the human mind and offers simple minded wisdom to Genos.
    Fubuki: I place your strength in high regard... Since you are the one that dealt with the Hero Killer, that means you too have reached the top.
    • According to Word of God, Saitama lacks technique and proper coordination and would do badly in team sports. However, this doesn't affect his ability to fight monsters as his immense strength, speed, reflexes, durability, stamina, excellent sight and hearing more than make up for this.
  • Achievements in Ignorance:
    • Saitama 100% honestly believes that his absolutely insane levels of strength, speed, and durability came from his daily basic training regimen. Everybody incredulously points out it's physically impossible for a normal human to get that strong even if they trained all the time for the rest of their lives.
    • He also defeats Garou in one hit. While this isn't that surprising, the kicker is that Saitama didn't even know he was fighting him. He believed Garou was just a guy trying to mug him.
  • Adaptational Attractiveness: His past-self three years ago in the reboot manga. He's not actually that bad looking bald either, but the majority of the time he's so lazy that not even his artist can be bothered to finish his artwork making him look like a Muppet or a doll for some reason.
  • Almighty Janitor: The strongest hero bar none, but started off as a C-Class hero due to a poor written score on the entrance exam. Not to mention that all of his observed victories are seen by the public as nothing more than flukes. His unobserved victories were all attributed to someone else, who is now the most feared hero in the entire organization, despite being an otherwise ordinary person.
    • This becomes less and less true as more and more people begin to notice his accomplishments and Saitama moves up the ranks, eventually becoming an A-class Hero in the webcomic.
  • And Then What?: Achieved his I Just Want to Be Badass dream and became so badass that nothing posed a challenge to him anymore. Which turned out to be incredibly boring.
  • Anti-Hero: Definitely a Knight In Sour Armor. He has the power to completely change the world, but is way too lazy to do so. He's also quite cynical about the hero business (not that he's wrong about said business). However, without a doubt, he will do the right thing.
  • Arrogant Kung-Fu Guy: He briefly gave off this aura because everyone initially considered him a fraud of a C-Class Hero and he didn't care what society thought of him. But overall, he doesn't really consider himself to be superior to everyone and has a modest outlook on life.
  • Art Shift: Saitama is drawn as either a stick figure, a slightly more detailed stick figure, or a fully drawn, highly detailed normal figure that matches the style of the other characters. It's all part of the joke that most of the time he does not look like the type of protagonist you'd see in a Shōnen manga and his normally unassuming appearance belies his strength.
  • Badass Cape: The only thing his old tailor got right with his outfit is the superhero style cape.
  • Badass Normal:
    • He managed to defeat a crab monster with nothing but his necktie before he ever started training.
    • Played With as well. Saitama thinks he's this and that his training regimen gave him Charles Atlas Superpower. However, it's painfully obvious to everyone who's not him that no man could acquire such strength through simple training, let alone Saitama's training regimen (which is pretty damn intense, but perfectly doable for a normal human being and nowhere near paranormal-level.)
  • Badass Teacher: Not that he wanted to be one, but Genos considers him such. Saitama even comments that, despite making it up as he goes along, Genos is eating out of the palm of his hand; writing down anything that sounds profound or insightful.
  • Bald of Awesome: In that his awesomeness is the reason he became bald in the first place.
  • Batman Can Breathe in Space: Downplayed during his battle with Boros. While he does seem to still need oxygen given how he takes the time to hold his breath and pinch his nose shut, Saitama suffers no other ill effects from being on the moon's surface after Boros kicks him there, even casually taking his time in figuring out how he was gonna get back.
  • Berserk Button: People commenting on his baldness tends to irk him, which doesn't help with the fact the Hero Association gave him the Hero name "Caped Baldy". But a much grander button for him is heroes who act cowardly. Also he clearly didn't like Suiryuu's speech about the heroes.
  • Big Brother Mentor: Plays this role to Genos. Although Genos originally joined Saitama to learn the secret behind Saitama's strength, he instead learns compassion, humility and heroism. Saitama is a positive influence that is helping Genos transition from a vengeance-fueled Antihero into a true hero.
  • Big Damn Heroes: A reoccurring theme and how most story arcs end is Saitama rescuing people. He is usually late and if other heroes are involved, they have probably already been beaten or are in trouble when he arrives. The biggest example is when he defeats the Sea King. As this series is a deconstruction of the whole super-hero genre, this is probably intended. Besides, he isn't aware that he was behind the foundation of the Hero Association for saving the big-chinned person's boy from a monster crab.
  • Blood Knight: Part of his depression about being so goddamn strong is that no opponent can give him a challenge anymore. Whenever he faces a seemingly strong opponent and defeats it in one punch, he laments that the opponent "kinda got his hopes up", examples being Asura Rhino and the Deep Sea King. He even had a dream that had him really enjoying the rush of fighting an opponent he thought was on equal footing.
  • Book Dumb: Saitama is not stupid, but he did so poorly on the written portion of the Hero Association entrance exam that he was placed in the lowest possible category of hero, despite his record-shattering performance during the physical portion. He scored a 100 on the physical, and a 42 on the book. Thus, he got a 71 (the cut-off was 70 points).
  • Boring Invincible Hero: How Saitama views himself. He wins all his fights so ridiculously easy, Saitama is disappointed he might never find a fight that will seriously challenge him. He even tells the second monster he curbstomped that his attaining the ultimate power has made his life boring as hell.
  • Boring Yet Practical: Compared to other heroes, Saitama has as much flash as toilet paper and hasn't the slightest clue as to how to properly utilize martial arts, but is so outrageously strong that he literally doesn't need anything else but to get close to an opponent and turn them to paste with, you guessed it, one punch. That said, it is very arguable how "boring" it is to watch him reduce even the biggest and most powerful enemies to Ludicrous Gibs.
  • Boxing Lessons for Superman: Bang has tried a few times to get Saitama to join his dojo, but the latter always turns him down. The most likely explanation for this is that Saitama's quest for a worthy opponent would get even tougher if he started supplementing his strength with martial arts.
  • Brick Joke: While talking with Genos before the training session, he wonders what his superhero name would be and comes to the conclusion that he would be called Caped Baldy. Several chapters later, and he does end up getting called Caped Baldy. He doesn't really like that.
  • Brilliant, but Lazy: Or in this case, unbelievable yet lazy. While skill wise and intellectually, Saitama isn't much higher than a regular person, his strength and abilities outrank the best of the best and if he wanted to, he could probably single-handedly hunt every mysterious being to the point of extinction. He's just way too lazy, bored, and laid back to even consider how his power and abilities could change the world.
  • Calling Your Attacks: A more literal example as Saitama's named techniques are just regular attacks. His "Consecutive Normal Punches" are just a bunch of normal punches thrown in rapid succession and from what we've seen so far, his "Serious Series" is just him applying actual effort into a move.
  • Cap: Dr. Genus believes that Saitama's power comes from overcoming the limit set by the universe on his growth potential. Meaning his power comes from literally breaking the laws of reality. By doing sit-ups, push-ups, squats and running or rather, because he was so dang determined in becoming the best that his determination allowed his otherwise mundane if not intense exercise routine to break his limiter. Because his limiter is gone, his power grows unchecked to absurd levels, and possibly infinite.
  • The Cape: Saitama is both an aversion and a straight send up of a classic superhero. He's often selfish and is only a hero because I Just Want to Be Badass and It Amused Me. He's a Blood Knight at heart and he literally dreams of fighting something that can give him a challenge. His knowledge of the world he lives in is borderline nonexistent at times. However, he inspires devotion from the heroes around him for a reason. Genos, Person of Mass Destruction and cliche android boy hero, regards Saitama as his teacher. He's the World's Strongest Man who lives in virtual obscurity, but doesn't use his absurd power for anything except being a hero. He doesn't care about the ranks as long as they don't inconvenience him, and he fought off monsters for years without realizing he wasn't getting credit for his work.
  • Cassandra Truth: When he first tells the secret to his success at becoming the strongest hero, those present don't believe him.
  • Catchphrase: He often introduces himself as "just a guy who's a hero for fun".
  • Celibate Hero: Despite his trusty Oppai sweater, and saying he isn’t into guys when wrongly interpreting the fact Dr. Genus was interested in his body as something else, Saitama is never shown commenting on women or interested in hooking up with someone, his desire for recognition is never linked to wanting to be noticed by fangirls or anything of sorts (although he got a little annoyed he heard Genos has fangirls of his own); later when Fubuki starts trying to pester him to join her group, Saitama is completely indifferent to her, as the Murata manga makes a point to have a few onlookers saying Fubuki is a gorgeous woman, and often thinks of her intruding attempts as irritating.
  • Character Development: Starts off as a Punch-Clock Hero who only cares about the thrill of the fight and the public's recognition, but eventually grows into a genuinely heroic person who makes himself unpopular so that other people can get the respect that they deserve.
  • Charles Atlas Superpower: Played with. His training regimen isn't even that intense (100 sit-ups and 100 squats aren't a big deal, and while running 10 km and doing 100 press-ups is more impressive, it's still well within ordinary human limits); his commitment to doing it every day is noteworthy, but when he tells people about it they react with incredulity that it could have made him so strong. Genos even notes it would be impossible for a normal human being to reach Saitama's level just by training, suggesting his strength comes from some other source that no one will ever understand.
  • Cheap Costume: In appearance. Saitama in full garb looks like he took just one step away from using a paper bag as a mask, notwithstanding that his costume is extremely durable.
  • Clark Kent Outfit: While most of it is because of how he is drawn, Episode 5 shows that he is more muscular than he usually looks. Notably, he has a different build in Episode 2.
  • Combat Pragmatist: Saitama is all over this trope. He defies Talking Is a Free Action, tends to use his ludicrous speed to get behind people before attacking, nearly always one shots his target, and will kill his opponent if he feels they're irredeemable. This is actually part of the reason the public doesn't like him much, as his pragmatism actually makes him boring compared to flashier heroes like Genos.
  • Comically Invincible Hero: Played with and explored — part of the humor of Saitama's character is that he is so outrageously overpowered that his fights are numerously anti-climatic. At the other end, he almost had an existential crisis simply because he grew so strong he couldn't enjoy his hobbies anymore.
  • Crouching Moron, Hidden Badass: While Saitama is NOT stupid, he is extremely lazy and bored with just about everything. Given that he is functionally indestructible (nothing has yet appeared strong enough to hurt him), this is understandable. Most of the time he barely pays attention or puts effort into anything which gives him the APPEARANCE of being a moron. And then when someone like Boros destroys a city or the Sea King mocks the resolve of heroes...
  • Curb-Stomp Battle: He dishes them out regularly; the only battle he has that lasts longer than it takes for him to deliver a single punch is Boros, and even he didn't come close to beating Saitama.
  • Cursed with Awesome: He's insanely powerful, ridiculously fast, and practically immune to damage, to the point of shrugging off anything that is thrown at him and defeating anybody that he fights in, well, one punch. This is exactly why he's so depressed about his superhero job, because there's literally no challenge for him no matter how strong and seemingly invincible his opponent is.
  • Dark and Troubled Past: Subverted example, as he doesn't care about his troubled life at all in the past.
  • Deconstructed Character Archetype: Saitama deconstructs the type of shounen hero that flooded the genre after Dragon Ball introduced Goku:
    • A hero who is motivated by Blood Knight tendencies will give up on heroism if it stops being thrilling for them, no matter how much good they would do. Whereas these heroes will intentionally drag out a fight to make it more thrilling for them, the closest Saitama gets is when he fights Boros and drags out the fight because he pities his Not So Different opponent and wants to make it more thrilling for him.
    • Similarly, a hero who is motivated by Challenge Seeker tendencies will eventually run out of worthy opponents to fight and discover that it's Lonely at the Top. This also deconstructs So Last Season (what anime fans call "power creep") — what would the hero do if their universe didn't keep creating more powerful opponents for them? Static Character is deconstructed as well, because as King notes, Saitama can easily find the challenge he seeks outside of physical combat; he just doesn't want to.
    • The public doesn't find a Showy Invincible Hero like Saitama nearly as exciting as someone like Genos, who is often pushed to his absolute limits or otherwise puts his life at stake and, thus, leaves the outcome of a battle more in doubt.
    • The Wish Fulfillment aspect of Saitama's character specifically parallels Goku — while Goku always wishes to be stronger, Saitama wished to be the strongest... and the entire series is about the fallout of getting his wish granted.
  • Destructive Saviour: Saitama has shown to be able to control the strength of his attacks, but still tends to go overboard, occasionally causing mass devastation in the aftermath. This is another reason why he's not a popular hero; he leaves a lot of destruction in his wake and his nonchalant attitude and laziness about it means it can be difficult to appreciate him.
    • He can also be this when not being attentive. During his second fight with Sonic, Sonic was causing chaos all around the city and acting as a villain to try and get Saitama to fight him. All while Saitama is desperately trying to find someone to fight so he doesn't lose his membership (due to lack of activity) all while ''ignoring the rampant chaos." He does eventually notice and defeat Sonic, but not before parts of the city are in ruin due to his spaciness.
  • The Dreaded: Any sentient monster that becomes even somewhat conscious of Saitama's true strength will be absolutely terrified of him, as shown early on with the (real) Subterraneans, Ground Dragon, Armored Gorilla and Asura Rhino. Humans are generally less shaken. Even the virtually powerless and incredibly timid King shows no real signs of fearing Saitama, since he never harms innocent people. He's unknowingly gained a reputation among both the Hero and Monster communities as a mysterious creature living in Z-City after killing several powerful monsters.
  • Dreaming of Things to Come: Played with and parodied. He has a dream about saving the world from the mole people who've risen from under the ground in order to wipe out humanity, and having a truly thrilling battle in the process. When he wakes up, the very same mole people from before are in the midst of launching their attack but, as usual, Saitama does not have a hard time at all defeating them.
  • Dude, Where's My Respect?: He's almost never given credit for defeating a lot of the major villains early on (in fact, King's "victories" are almost all Saitama's), though he finds out it's mostly because he wasn't a registered superhero. In addition, he's unaware that the creation of the Hero Association is down to him. Even after registering, the people rarely give him credit for his victories, or are unappreciative when they do. In some cases, Saitama will deliberately avoid getting credit when he thinks others deserve it more. He also tends to neglect to report any monsters he defeated to the association, or have no witnesses around to see what he does. That said, Saitama still moves up in rank after each victory, because the Hero Association at least recognizes that he is responsible (and if he's not, they figure promoting him will prove it). He's also slowly gaining the respect of various heroes, who do realize that Saitama really is as powerful as advertised.
  • Dull Eyes of Unhappiness: Almost always seen with a blank expression on his face due to extreme boredom and lack of passion, since he's so powerful that almost no one is strong enough to give him a proper challenge.
  • Embarrassing Nickname: He's not pleased to know that the Hero Association gave him the hero name "Caped Baldy".
  • Empowered Badass Normal: "Road to Hero" depicts Saitama being a hero while in the midst of training; while he's nowhere as strong as he is after completing his training, he still has far superior strength and reflexes compared to the average human, to the point where he can knock out most of his opponents in a single punch to the face. Key word being knock out; he had yet to gain the power to pulverize his targets into split atoms.
    • It is heavily implied that Saitama is not a Badass Normal anymore, and that it's not his training that made him as strong as he is. Rather, it seems likely that his obsession with becoming the strongest manifested his will into reality.
  • Everyone Has Standards: Discussed and parodied after he slugs Boros mid-speech.
  • Experienced Protagonist: He starts the webcomic with his renowned strength, endurance, and agility. And he explains to Genos in the House of Evolution that he became that strong via a training schedule.
  • Expy: Of the children's character Anpanman. Saitama in his hero costume is basically a Palette Swap of the character. Further, the phonetic transcription of the Japanese name of the series is "Wanpanman."
  • Fastest Thing Alive: When serious, Saitama can move faster than light as shown when he outpaced Flashy Flash with barely any effort. The latter starts admiring Saitama.
  • Fatal Flaw: A rare of for an shounen protagonist: Sloth. It's shown that a lot of Saitama's loneliness and boredom comes from his laziness more so than he's strength. He lives practically like a hermit in an abandoned area of town and he's unmotivated to find a challenge outside of combat to engage himself in. His other flaw is more common: Wrath. When he does find something that legimately challenges him, he often gets very angry. So much so that he once almost killed Bang over a game Bang had challenged him to. His opponents tend to not take him seriously up until he gibs them, when he gets mad at them, every villain panics when they see his Nightmare Face.
  • Finger-Tenting: When he contemplates his lack of fame as a hero.
  • Flash Step: Even the fastest beings in the story going at full speed are terrified when he casually outpaces them. Took this Up to Eleven during his third encounter with Sonic through another of his "Serious Series", called "Serious Consecutive Side Hops".
  • Flying Brick: His powers are just cranked-up versions of normal human running, punching, jumping, reacting, and resilience, so he can't exactly fly. He doesn't have dedicated energy attacks like Eye Beams, but at one point he carved a miles-long canyon out of a mountain just by throwing a shockwave off of his punch. Another aspect that is frequently raised is the fact that he completely lacks heightened senses and has a rather poor sense of orientation, these contributing to his chronic tardiness; he has no parallels on a fight... that is, if he's able to get there at all.
  • Foil:
    • To King. While Saitama is outrageously strong with no recognition, King is a totally ordinary guy who everyone thinks is an invulnerable superhero.
    • To Garou. Both of them have a strong sense of morality and justice, albeit manifested in different ways. While Saitama wanted to be like a hero from his childhood who fought villains, Garou wants to be a monster who defeats heroes. While Garou is a genius fighter and a prodigious martial artist, Saitama is an ordinary person with no fighting technique. Furthermore, Garou can enjoy the feeling of losing in order to improve himself to become stronger in most of his fights, while Saitama desires to have a worthy opponent to find the rush of excitement he once had while he was training.
    • To Mumen Rider. Saitama is mellow, half-asses his fights, is incredibly overpowered and effective in battle, gets no respect from the public, and is a hero for fun; Mumen Rider is the exact opposite.
    • He also gets foils in particular arcs, like Boros (someone else who'd gotten so powerful he'd become bored, but used his power for casual destruction) and Suiryu (like Saitama, he enjoys fighting for fun, but his abilities have made him famous, and he dismisses heroes).
  • Food as Bribe: Was bribed by Bang to eat at his dojo in hopes that he would learn some martial arts.
    • Saitama became immediately friendly with Kuseno when the latter bought him premium gourmet beef.
  • Friend to All Children: He's shown giving a child lost in the mountains a ride home at one point, and his first heroic act was saving a child's life.
  • Friendless Background: Before Genos came along, he's shown to not have any friends, not hang out with anyone, and have no desire to befriend others, even when he still was in school. He would spend most of his time training to become stronger, going out shopping, watching the news, or fighting monsters. However, as the series progresses, he eventually makes new friends, though he views them as acquaintances.
  • From Nobody to Nightmare: A heroic example. Once upon a time, Saitama was a recently-fired salaryman looking for work, until an encounter with a boy with a big chin and a crab monster changed his life. After three grueling years of training, he became so powerful that he could defeat any foe with a single punch.
  • Fun T-Shirt: His infamous Oppai shirt.
  • Good Is Not Dumb: While not the intellectual type (he horribly failed the written portion of the hero exam) and can admittingly not be good at paying attention, he's actually quite insightful and perceptive.
  • Good Is Not Nice: While he is a remarkably patient and passive person, Saitama is no Extreme Doormat and would snap if people start giving him bullshit about his heroics, basically telling them to shove it and go fuck themselves.
  • Good Is Not Soft: While Saitama isn't the Punisher, and doesn't just go around killing bad guys, he has no problem turning sentient feeling creatures (albeit monsters) into piles of meat, bones, and gore. He also doesn't even give it a second thought after turning said creatures into piles of blood and offal. That said, he rarely ever goes for the kill right off and tends to give bad guys the chance to turn themselves in or run. If the bad guys turn out to be real jerkasses, however...
  • Good Old Fisticuffs: He has no martial arts training, but he is so strong that simple attacks (in this case, a simple punch) are totally sufficient to smash his opponents.
  • The Greatest Story Never Told: Bordering on Perception Filter; most literally can't seem to see the things he does. Doctor Genus believes this is the true price Saitama paid for his vast power. It also helps that King was erroneously given the credit for the sole reason of being the only other person present in those fights.
  • Groin Attack:
    • Accidentally does this to Sonic at one point (Saitama just held out his fist, but Sonic's momentum carried him too far forward). Luckily for Sonic, he'd wanted to stop right before making contact instead of actually hitting him, otherwise Sonic would likely be nothing more than a red mess on a tree at this point.
    • Accidentally does it to Sonic again in a special chapter, this time elbowing him in the groin (Sonic was trying to attack him from behind).
  • Have I Mentioned I Am Heterosexual Today?: Simply said how he's not into dudes after Armored Gorilla says how his boss is interested in his body, not realizing he was referring to his strength only.
  • Hero of Another Story: Played with in-universe. Most, if not all of his accomplishments are credited to other heroes, and as such, both the general populace and most of the Hero Association members barely know who he is, then there's the ones that think he's a hack, while there's only a select few who know him and respect him for what he's done. By design, his fellow heroes are The Protagonist of the stories that the in-universe public sees and they are tiny compared to Saitama (who is The Protagonist of the story we, the out-of-universe public, sees) who would be a titanic background character of sorts.
  • Hero with Bad Publicity: Played straight and later invoked by the man himself. Because of his anonymity and the fact that he beats villains without any effort, people have accused him of being a fraud who isn't a "real" hero. He saves a town from a meteor but the debris destroys the city anyway, although everyone lived. After he kills the Sea King, a random Jerkass starts mocking the heroes who couldn't beat him before Saitama showed up. Saitama decides to paint himself as a selfish Glory Hound so said heroes get the credit he feels they deserve at the cost of his own reputation.
    • Thankfully this is mostly averted when it comes to his fellow heroes, especially those in the S-Class. They tend to have enough combat expertise to know he's the real deal from the start (Bang) or discover it for themselves the hard way (Tatsumaki and Fubuki). Most of the higher ups in the Association also seem to think he was placed low due to a fluke and that he should be much higher since he utterly destroyed his physical exam.
  • Heroism Won't Pay the Bills: He receives a monthly stipend once he joins the Hero Association. Despite that, he spends an entire chapter trying to get pocket change to try a drink from a vending machine. Prior to joining the Hero Association, he did not have an apparent source of income. Word of God reveals that he made a living doing troublesome part time jobs, living frugally with his savings, and living off vegetables given to him by people he saved. Despite Genos moving in with him and paying his rent, his standard of living hasn't changed because according to the author, Saitama refuses to spend any of Genos's money.
  • Hidden Depths:
    • Saitama originally comes across as a Brilliant, but Lazy type of individual, bored with everything around him. During his fights with Boros and Blizzard, however, Saitama proceeds to show that not only is he much smarter and well versed than he appears, he also has an exceptionally strong moral core.
    • Saitama has techniques that utilize his ridiculous strength. He calls them his 'Serious Series' and you have to be a special kind of villain for him to stop simply punching you and fight a little smarter.
    • He was once punched so hard he crashed into the moon (as in his starting point was Earth), and then he jumped all the way back to Earth, and landed almost exactly at where he started from after gauging the gravity of the moon by tossing one rock lightly into the air. There's Improbable Aiming Skills, and then there's GTFO.
  • Hidden Heart of Gold: He does not care too much about getting recognition for his deeds, since he does not really put a lot of effort into what he does anyways. But he does want other heroes, those who do risk their lives to save innocents, to be respected. And to achieve that, he will sometimes paint himself in a bad light for them to look better.
  • Hope Spot: Played for laughs during one chapter when he and King were playing a fighting game. He manages to reduce King's character's life to a sliver with his "infinite combo"note . King then decides that he's given Saitama enough of a handicap before showing what an actual infinite combo looks like. Saitama can only helplessly watch his character's full hp bar be reduced to 0, then throw the controller in disgust after he is defeated.
  • Humble Hero: He doesn't seem to care much about notoriety, and goes as far as to deliberately undermine his own reputation in order to ensure that weaker heroes (who were taking more serious risks than him even if they weren't able to win) get the respect he feels they deserve. Even though he expresses faint protests at it, there's the fact that his apartment is open for all heroes who he's met, to the point where there's a Running Gag of just interlopers crashing in his apartment.
  • I Am Not Left-Handed: Saitama's "Serious Series" of moves, where he actually bothers to put some effort into his attacks. Most of the time, he's so lazy and disenchanted he's barely trying.
  • I Am Not Shazam: The series is named "One-Punch Man," obviously attributing the feat to Saitama. In-universe, he's never been called that.
  • I Just Want to Be Badass: Deconstructed and Parodied. Saitama's original motivation for becoming a hero in the first place was just to be a cool, powerful badass and fight strong enemies, like many a Shōnen hero. Well, needless to say, he succeeded with flying colors and now he's so badass that he doesn't know what to do with himself.
  • Improbable Weapon User: He once defeated a giant crab monster using only his neck tie.
  • In a Single Bound: Saitama can't fly, so he usually has to jump using his Super Strength to get places. Since he can easily jump off the Moon all the way back to Earth, it's good enough.
  • Inexplicably Awesome: Saitama is basically the most powerful person in the universe, and there's no logical explanation as to how he got to be that. In his view it's because of his training, but it's pointed out various times that a normal human couldn't possibly become that strong just by following a moderately-tough (even by real life standards) training regimen.
  • Informed Flaw: Word of God explains that Saitama lacks coordination, but this is barely suggested in the manga through his awkward posture in a few frames; it's only in the anime that we see his poor balance.
  • Invincible Hero: Deconstructed. Saitama is completely aware of this trope applying to him and the series deals with him coming to terms with this, eventually treating his superheroism more as a hobby than as the standard motive of eradicating evil. In his own words, "having overwhelming power is... pretty boring."
  • Irony: It turns out Saitama inspired the foundation of the Hero Association. By saving a random kid from a monster, he gave the kid's rich grandfather the idea of creating the Hero Association.
  • I Work Alone: Highlighted in one of the extra chapters. Saitama doesn't value teamwork very much and his teammates are ignorant about his power. Word of God states that Saitama would do poorly in team sports. He was also hesitant to accept Genos as his disciple, but nevertheless, he does seem to care for him and his small group of hero friends.
  • Jerk with a Heart of Gold:
    • He became a super hero for rather selfish purposes, is lazy, and seems to care more about having a fun fight and will sometimes ignore problems in his city until he's directly involved, but he does genuinely want to protect the world. He's just fallen into a lull because of how easy it's become.
    • While he doesn't always act like a paragon of heroism, some of his lines imply that, while he may not act like it, his heart is in the right place. One of the best to date? "If the heroes run and hide, who will stand and fight?" During his dream fight against the subterraneans, while he admits that he's just a hero for fun, he also says the surface is under his protection.
    • He's also quick to let people think he's a phony, just so that the other heroes who put their lives on the line and nearly died would get the respect they deserved. He doesn't care about getting recognition from the public, but thinks the other heroes should get it.
  • Killed Mid-Sentence: Not him, but he kills most of his opponents in the middle of introducing themselves and gloating about their awesome powers.
  • Kirk Summation: Saitama is rather fond of these
    • To Fubuki:
      Saitama: You won't survive. You don't get what hero means. There's a lot of incredibly strong bad guys in the world. Those who oppose them are called heroes. Even if they are alone. You, who gathers weaker subordinates to feel strong, won't make it. At this rate, you are gonna cry sooner or later. When a monster stronger than you shows up, none of your subordinates will save you. Factions? Newbie crushing? Keeping your ranks? They have nothing to do with anything! Do not look down on heroes, you moron!
    • To Garou:
      Saitama: So you did have an "image of an ideal hero" inside of you. I see now. I now understand what you wanted to do. Even though you said you wanted to be a "monster of absolute evil"... What you really wanted to be was a hero. But you compromised and decided to be a monster. To bring about world peace, you took the easy route, thinking a monster's job was quicker and easier than a hero's. A monster's role is simpler after all, all you had to do was defeat heroes. It's perfect for someone with no confidence like you. BUT YOU CAN NEVER DEFEAT ME. Peace made by ruling the world with fear can't succeed as long as you can't defeat me. It will never work. It's absolutely impossible for you. Because if it's your compromised monster hobby vs my serious hero hobby, even if that's all I had, I still wouldn't lose! It was a mistake to lower the hurdle right before the goal. A half assed objective just can't succeed.
  • Last-Name Basis: "Saitama" is his last name. His first name has yet to be revealed.
  • Let's Get Dangerous!: Anytime he decides to pull out his Serious Series, which is where he puts in some actual effort into his moves.
    • To a lesser extent any time he is drawn with the same level of detail as everyone else.
  • Lightning Bruiser: Strong enough to kill most adversaries with one punch, faster than other heroes renowned for their high movement speed and he has yet to receive a single battle wound, even after taking some really heavy hits (like getting kicked so hard he flew all the way to the moon).
  • Limited Wardrobe: He seems to have only a few sets of clothing, if you exclude the special chapters. There's also his iconic hero outfit, made for him by his old tailor.
  • Line-of-Sight Name: His hero name "Caped Baldy" is due to the fact that, well... he's a bald guy with a cape. Compare this to Genos' "Demon Cyborg" because of his trait of fearlessly confronting enemies without regard for their numbers or strength.
  • Lonely at the Top: It's implied at different points that one of the prices for his power other than No Challenge Equals No Satisfaction is that Saitama feels fundamentally isolated from basically everyone else as it's been so long since he had to struggle or feel challenged by anything he finds it difficult to relate to other people.
    • However, King eventually calls him out on this, saying he should just pick up another hobby if he's so unhappy about being isolated in his current one, only for Saitama to be unwilling to give up his superhero pastime. Furthermore, Saitama seems to not be much of a team player and it's implied he had a friendless childhood, so he may have always been pretty lonely.
  • Ludicrous Gibs: Almost all of Saitama's victories are as messy as they are destructive; the only kills that weren't were Geryuganshoop (who Saitama headshots with a rock) and Beefcake (whose fluids probably would have drowned the civilians below).
  • Malaproper: It's deliberate. Notable examples include calling Boros "the Denominator of the Universe" and vowing to help Genos after he pounded "this Seafreak or whatever."
  • Maybe Magic, Maybe Mundane: Where, exactly, does Saitama's impossible strength come from? Anyone with a gram of sense can see that it's simply impossible that his training regimen could turn a normal human into something like him, but is there actually another explanation (such as him being a subconscious Reality Warper), or is that simply the absolute truth, even if it is impossible? We just don't know, and it's possible we never actually will.
  • Meaningful Name:
    • This series is named One-Punch Man because he wins most of his fights with a single punch!
    • On a more mundane note, his code name, Caped Baldy, comes from his baldness and the cape that comes with his outfit.
  • Mr. Fanservice: Saitama is fairly muscular and has been shown shirtless and on one occasion completely naked. Of course, his face isn't always as appealing when he's drawn in his normal manner.
  • Mundane Utility: Early on in the webcomic, he's walking home after a trip to the grocery store by riding on a mechanical walker. And a nearby bystander calls him out on how lazy he's being.
  • My Suit Is Also Super: Setting aside Saitama's own improbable power, his superhero suit is also incredibly durable. The only time it's ever suffered Clothing Damage was during the fight with Boros, where his cape was torn in half. Beyond that it's rare to see so much as a speck of dirt on it, regardless of what attacks he lets the enemies throw pointlessly at him, or even the attacks he himself makes. It's surprising that an individual with no connections whatsoever was able to procure such suit, all while making himself look lame.
  • Nice Job Breaking It, Hero!: In "Road to Hero", Saitama discovers he can make money to pay his rent by turning in all of the criminals housed up in the apartments next to his, and proceeds to beat all of them up. When he shows his caught criminals to the landlady, she berates him for getting rid of her sole source of income, and proceeds to kick him out anyways.
  • Nigh Invulnerable: His training didn't just make him insanely strong, it also gifted him with incredible endurance and durability, so much so that hitting him can actually harm his opponent.
  • Nightmare Face:
    • Played for laughs when Saitama catches up to a mole-like enemy by punching into his tunnels, bursting out of the wall with a horrific smile.
    • Played straight later, while fighting Asura Rhino. As Asura attempts to attack him from behind, we get this shot of Saitama looking positively pissed, and Asura Rhino jumps back in terror.
    • During his first encounter with Sonic he moves his face so fast it blurs giving an incredibly unsettling effect.
    • During a later encounter with Sonic, Saitama bites Sonic's katana blade into pieces while Sonic is attacking with it. His face mid-chomp is grotesque and unsettling.
  • No Challenge Equals No Satisfaction: Implied to be the real price for his unbeatable power. Being too strong robs the excitement of uncertainty and satisfaction from effort for any task (especially killing monsters and saving people). "Having overwhelming power is... pretty boring".
  • Nonchalant Dodge: Not that he needs to dodge, but it does illustrate just how much faster he is compared to his opponents when they go all out with an attack and he sidesteps them as if by accident.
  • The Nondescript: His baldness is the only strange thing about him, and even that just makes him look more like a cartoon stick figure.
  • Non-Standard Character Design: While many characters in the series are subject to this, Saitama is remarkable in how unremarkable his appearance is, being distinct not from having particular facial features but from how simplistic his face is. His baldness just adds to the simplicity even further. See the series page image for a perfect example of how he stands out.
    • It's especially noticeable in the webcomic and manga, where he is drawn so simply and crudely compared to everything around him that it counts as an Art Shift.
  • No-Sell: Being essentially invincible, he regularly tanks incredibly powerful attacks without flinching. In extreme cases, he doesn't even realize he's being attacked.
  • No Sense of Direction: Despite his speed, he gets lost fairly easily, which is why he tends to be the last person to make it to a fight.
  • Obfuscating Stupidity: Saitama primarily does this in two ways. He most commonly leaves himself wide open so he can unleash his one hit counter. He'll also pretend to be lost or uninterested to trick the enemy into revealing important information, be it directly or via Reverse Psychology like when he acted like he wanted to leave the ship during the alien invasion.
  • Offscreen Moment of Awesome: After Gouketsu wrecks the martial arts stadium and heads back to the Monster Association's hideout, Suiryu warns Saitama not to go after the four-eyed giant. Saitama casually brushes off his warning in order to be a real hero. With the manga being told from Suiryu's perspective, at this point, all that's shown is a severely injured Suiryu listening to a few rumbling sounds, followed by Gouketsu's head landing in the arena in Chapter 75. And Gouketsu's pierced corpse isn't shown until Chapter 79, when Gyoro Gyoro investigates why the giant hasn't returned from his recruitment drive.
  • One-Hit Kill: His specialty, as he can defeat literally anyone with one punch, most of the time even when he's trying really, really hard not to. Needless to say, he's not very happy about it.
  • One-Man Army: Considering he almost single-handedly wiped out an alien invasion force AND beat their much more powerful leader with strength to spare, it's safe to say he's this.
  • Only Friend: To King. Saitama is the only person who understands King's situation.
  • O.O.C. Is Serious Business: If Saitama gets angry when he's come across a truly despicable villain.
    • In a more meta sense if the artist/animators bother to put in the effort with how much detail he's drawn with, it means he's more than a little worked up.
  • Outside-Context Problem: While the World of Badass the series takes place in is no stranger to tough guys in costumes fighting giant monsters, Saitama is something different because of just how easy every single fight is for him.
  • Overshadowed by Awesome: Despite being the most powerful person in the world and possibly the universe, his plain looks and penchant for finishing fights effortlessly in one hit mean that most people overlook him for the more conventional badass-looking characters. He's also willing to paint himself as a hero who takes credit for others' deeds in order for people to appreciate the efforts of those heroes who truly have given their all to save people, in contrast to his effortless work. In short, he is invoking this trope upon himself, in part intentionally.
  • Perception Filter: Seems to have one imposed upon him; he has a really hard time having his achievements recognized, especially in light of his frankly absurd power and ability. This mostly holds true for the general populace, however, as his fellow heroes seem to at least respect and appreciate his skill and strength.
  • Person of Mass Destruction: His "barely trying" punches turns monsters into Ludicrous Gibs and can leave massive holes in buildings, while his strongest seen punch split a planet-ruining Kamehame Hadouken, killed the one who fired it, and left a miles-wide split in the cloud cover of the planet until it reached the horizon.
  • Powerful and Helpless: Saitama originally became a superhero for the thrill of danger. Except that he accidentally became the strongest being in the universe, causing his work to become soul-crushingly boring. And since he never bothered to take credit for any for his victories, he's always flat broke and nobody knows who he is.
  • Pre-Asskicking One-Liner: The two words you don't want to hear from him are "Serious Series". It means he is going to unleash a multi-megaton can of whoopass and turn your arrogant ass into paste.
  • Prematurely Bald: All of Saitama's hair fell out at the age of 25 due to his intense hero training.
  • Primary-Color Champion: Mostly yellow from his suit, with red highlights from his boots and gloves.
  • Rapid-Fire Fisticuffs: "Consecutive Normal Punches". Considering just one punch can kill pretty much anything...
    • This is demonstrated during the Anime OP in something of an Establishing Character Moment: Partway through the intro, Saitama fights a monster horde in a canyon, socking them one-by-one into the cliff-face behind them when all of a sudden a bunch of them rush him from behind. Saitama immediately turns around and throws a flurry of punches so fast the attack not only hits all of them at the SAME TIME, it blasts them all into the canyon wall so hard that that part of the canyon itself EXPLODES.
  • "The Reason You Suck" Speech: He gives one to a whole city when the residents complain about his method of stopping the meteor that was going to hit the town. Never mind that he saved their city from total annihilation, the citizens started blaming him for the destruction. He wasn't happy about it.
  • Red Oni, Blue Oni: Despite his Blood Knight tendencies, he's the blue oni to Genos' red since he's more laid back and insightful.
  • Required Secondary Powers: He possesses ridiculous control over his own power. He can punch any adversary just hard enough to either kill or incapacitate them instantly, obliterated a mountain range while leaving Genos unharmed at the end of their sparring match (when his fist had stopped right in front of Genos' face, no less), and can control his strength to the point where he can do everyday tasks without issue... mostly. He did break one of the buttons on King's handheld console, after all.
    • And as pointed out above, other characters are quick to point out that Saitama's insistence that he somehow got his incredible strength by just training every day is just absurd. No normal human could possibly gain the strength to do something like punch an entire mountain range to pieces in a single blow without something else getting involved.
  • Respected by the Respected: Most heroes that have witnessed his might firsthand have massive respect for him and his input; still, there have been very few in the first place.
  • Salaryman: Was interviewing to be one, before he ran into Crablante and took up being a part-time superhero instead. "Screw getting a job; bring it on!"
  • Secret Keeper: He's fully aware of King's true strength (or lack thereof). However Saitama's so blasé that he doesn't bother telling anybody, not even Genos.
  • Shounen Hair: Before he went bald from training he had spiky hair.
  • Shut Up, Hannibal!: Saitama does this with a Talk to the Fist on any villain unfortunate/stupid enough to pick a fight with him. They'll Trash Talk Saitama about how inferior he is compared to them, just before Saitama simply curbstomps their asses.
  • Sideways Smile: He gets a great one after he trolls Geryuganshoop by asking for directions out of his ship.
    Geryuganshoop: Take a right, go up the stairs and wait there for further instructions.
    Saitama: A... right?
    Geryuganshoop: E-e-exactly, a right!
    [beat]
    Saitama: [unsettling laugh] I guess I'll go left then!
  • Simple-Minded Wisdom: Saitama is chock full of this. He's a modest and down to earth kind of guy and often points out how complicated other people tend to make a situation. While he might not be the best intellectually speaking (he only just passed the hero exam due to his terrible written section), he's got the emotional IQ of Stephen goddamned Hawking.
  • Skewed Priorities: Due to having overpowered strength, he doesn't really care for things like beating up monsters, only focusing on mundane things like supermarket sales. A good example of this is in Carnage Kabuto's fight, where he panics when he realizes that he missed the special Saturday sale.
  • Stealth Mentor: Played with. Saitama never really intended on teaching Genos anything when Genos convinced Saitama to take him on as a student. Once he had revealed his training regimen to Genos, Saitama felt that he had nothing more to teach him. Genos still arduously tried to learn all he could from Saitama, even after learning this fact, and it paid off in the end. Being with Saitama has taught Genos a lot about selflessness and humility. Before he was only out for revenge, hence why he never registered with the Hero Association, but now he also wants to protect people.
  • Story-Breaker Power: A Deconstructive Parody. Saitama's life has become incredibly boring from winning all fights easily, but it's Played for Laughs.
  • Strong and Skilled: Defied; Saitama refuses the martial arts lessons that Bang offers him because they'd make it even harder to find a Worthy Opponent.
  • Stylistic Suck: Saitama's model has a lot less detail than most other characters, almost as if he were drawn by a child. It's also the only way he stands out when he's on a manga cover and surrounded by larger, more well-drawn characters.
  • Superpower Lottery: He's just about the biggest winner in the setting, with Super Strength so ridiculous he can One-Hit Kill literally anything, Super Speed that allows him to casually outpace even the fastest characters and avoid their attacks as if by accident, and being so Nigh Invulnerable that he doesn't even feel an opponent's attack. The only drawbacks were the loss of his hair and 3 years of a simple (albeit arduous by reality's standards) training regimen to get there.
  • Super Reflexes: He can casually keep up with Sonic's Super Speed, sidestep Genos' blasts during their sparring session, and even parry Lightspeed Flash's attacks (which, if said hero's name can be believed, should be physically impossible).
  • Super Senses: To a point. Saitama is able to very casually follow enemies that are moving so fast they are barely a blur, and can even accurately track enemies underground (who are trying their best to flee from him). However, he can usually find a fight only if someone points him at the right direction.
  • Super Speed: He can casually dodge attacks faster than the speed of sound and can create nigh-infinite amount of afterimages with "Serious Consecutive Sidehops". And considering he can jump from the Moon back to Earth in the span of a few seconds, he can easily reach light speeds.
  • Super Strength: With a single punch Saitama can level mountains, fell giant city destroying monsters, cut planet destroying energy blasts in two and stop an object traveling at escape velocity. And that's not even at his full power, which we've only seen a fraction of.
    • The leveling mountains act in particular is notable in that it wasn't even Saitama's punch that destroyed the mountain, but the wind from his punch.
  • Super Toughness: Verging into Nigh Invulnerable. He's only ever taken damage in a dream. Boros hit him so hard once it knocked him to the surface of the moon; Saitama wasn't noticeably injured by the blow, the impact on the moon, exposure to the vacuum of space, atmospheric reentry, or his impact on Earth. The moon on the other hand...
  • Supporting Protagonist: If anything drives the plot more than Saitama's disillusionment in becoming a hero, it's the struggles and Character Development the people around him are going through. He usually either has some words of wisdom (even though he rarely considers them such) for them, or points out the flaws which are holding them back.
  • Tall, Dark, and Handsome: In the reboot version of the manga, prior to becoming bald due to his training three years ago, he basically looked like a brunette version of Genos with brown-colored eyes.
  • Taught by Experience: He never received any formal training, and the only experience he got was either from his training regimen or his monster hunting.
  • Thou Shall Not Kill: Played with. Saitama has no qualms about killing monsters because the monsters that he usually faces are Always Chaotic Evil, out to kill people, or have already killed people. When he faces human opponents, all he does is incapacitate them, even if said human opponent is out for his blood like Sonic. Even if the opponent himself acts in a way that all other people would consider too irredeemable to let live, Saitama still spares said opponent, believing that he's still a human and can change if given a chance, like Garou.
  • Trademark Favorite Food: Udon, which is a realistic preference for someone so strapped for cash. One of the OVAs shows that Saitama also gets protective over his french fries — but only the long ones that are soft in the middle.
  • Training from Hell: Subverted. Saitama claims the secret to his power is "100 sit-ups, 100 push-ups, 100 squats, and a 10 kilometer run, every single day". While it can be grueling for the average person, it's still well within the limits of ordinary human endurance. For a person whose super power is the One-Hit Kill, it's rather anticlimactic.
  • Underestimating Badassery: Saitama is a frequent victim of this from the Hero Association, the public and the monsters themselves. The monsters just dismiss him as some small fry and attack him, only to get brutally killed by in a nonchalant manner by Saitama. The only antagonist who took Saitama seriously was Lord Boros and later Monster King Orochi.
  • Unskilled, but Strong: He lacks any form of martial arts training, but he doesn't need any, due to being stronger, faster and tougher than anyone else. It's zig-zagged, though, since he's at least skilled enough to control his strength (like how, when sparring with Genos, he made the force of his punch go around Genos), and he has enough precision to jump from the moon to Earth and still land in the same spot Boros threw him from.
    • Also Played for Laughs since he does this approach to everything, including video games. He loses in what appears to be a Pokemon-like video game against King because Saitama didn't bother with type-advantages, instead just hoping on higher levels. He hasn't gotten this in his head yet.
  • Unusually Uninteresting Sight: You'd think someone wearing a bright jumpsuit and a cape would attract people's attention, but he is often ignored, something he complains about. Justified, since there is actually an association for heroes and there are many more people wearing garish costumes, although Saitama didn't know that until Genos pointed it out.
  • Wardrobe Flaw of Characterization:
    • Saitama looks lame as fuck for someone whose powers can only be described as "titanic". His costume design is plain and boring, as if thrown together in five minutes, which further drives the point of how little attention he gives to his image. One of the aspects that most affects his lack of exposure is how lazy the design is and how it makes people overlook him. Dude looks like a mustard bottle.
    • One of the unintentional aspects that his plain uniform brings is the fact that villains tend to underestimate him at first glance, and even during fights. There's a remarkable disconnection between his appearance and his powers, so most villains cannot even begin to grasp what's happening before Saitama defeats them. What makes it so funny is that Saitama wants to be noticed.
  • Warrior Therapist: Buddhist undertones aside in regards to how Saitama may have reached his power, he certainly has a way with words when it matters and he uses his strength and speed to leave his opponents speechless as he verbally beats them down. If he thinks they are a danger to others or irredeemable, he just kills them. That or he's panicking because he forgot about a sale. That being said, he usually either does give enemies a chance to surrender or he doesn't attack until they attack him first.
  • Weak, but Skilled: Before he gained his powers, he killed a monster despite being a Muggle at the time through skillful maneuvers and clever use of his tie.
  • What Measure Is a Non-Human?: Saitama kills obviously-sentient non-human monsters (even ones whose inhumanity is physically slight, like a Cute Monster Girl) without the slightest hint of remorse; but he refuses to kill humans ever. This is particularly obvious in the Garou arc, where Saitama decides that Garou is human and won't allow the heroes to kill him. Part of this is that some monsters were never human in the first place. Those who were human typically went crazy due to a particular trauma or obsession and mutated; after the mutation, the monsters have lost all humanity and will slaughter and kill without rhyme or reason, so Saitama shows them no mercy. One reason he refuses to see Garou as a monster is that Garou won't kill other humans.
    • Saitama's standard, however, seems to be whether the monster is an immediate lethal danger toward people; he's let Garou and Kombu Infinity live since they were only beating people up, he's let Black Sperm and Rover live (he even keeps them as pets) when they were in a weak form, and he's allowed monsters to surrender (Armored Gorilla was spared). He still shows a little more mercy towards full humans (he lets Sonic live, even though he never surrenders or stops being a danger).
  • What You Are in the Dark: Despite needing occasional good publicity in order to maintain his status as a hero, Saitama will far too often ensure that others get credit for his deeds.
  • When All You Have Is a Hammer...: Big bad monster terrorizing the neighborhood? Punch it. Unstoppable meteor plunging from the sky about to destroy the city? Punch it. Planet-busting energy blast being fired from a dimension-conquering alien overlord coming straight for you? PUNCH. HARDER.
    • This is also a good explanation for Saitama's poor written score on the Hero Association exam. Questions like "How would you handle X threat?" would be answered by regular heroes with complicated, personalized strategies, but the only solution Saitama would need for any of them is... "punch it."
    • Justified, given that despite Saitama having absurdly high power, he is still human, thus having the limited abilities of a human. Still, he does use speed and dodges a lot of blows. He even has his own set of techniques to utilize his strength in different ways.
  • Whole Costume Reference: His costume is a color-inverted version of that worn by another bald superhero, Anpanman (switched the colors of the gloves/boots and body, white cape instead of black).
  • Willfully Weak: The only reason he doesn't end all his fights in one punch is he always starts out putting in as little effort as possible. When using his Serious Series moves, he can casually create shockwaves that cross an entire ocean, and this is a mere fraction of his true power. Were he to go all out, the destruction would be cataclysmic, if not apocalyptic. He has yet to actually go all out because nothing so far has ever come close to forcing him to fight seriously.
  • Worf Had the Flu: He was actually knocked off his feet by a monster on his 300th day in training. Turns out it was just a bad tooth, and when said tooth was removed...
  • "World of Cardboard" Speech: He makes one after some people say a lot of bad things about him, never mind that he saved them from a giant meteor in the first place.
    Saitama: Let me make one thing clear! I'm not working as a hero to get you morons to admire me! I do it cause I want to!
  • World's Best Warrior: Saitama isn't skilled in martial arts like Garou, Bang, and Bomb. But his 100% success rate, and being an Invincible Hero as well as the World's Strongest Man, qualifies him as this.
  • World's Strongest Man: Saitama is, to put it lightly, leagues above some of the strongest beings in the known universe, and far beyond the threshold of the S-Rank heroes to the point of single-handedly outclassing them during Boros' invasion. Even then, that wasn't even a third of his actual strength. The only known person who might match Saitama is BLAST. As Boros puts it:
    Boros: You really are... way too strong.
  • Would Hit a Girl: He's fought Fubuki and Tatsumaki in non-lethal combat and (apparently) killed Mosquito Girl with a slap.
  • Zero-Approval Gambit: After defeating the Deep Sea King, one obnoxious spectator calls into question whether the heroes were heroic at all. In order to stave off backlash against his fellow heroes and ensure the Hero Association continues to get funding and donations, Saitama claimed that Genos and the other heroes softened up the Deep Sea King enough for him to kill him and take the credit. The other heroes became adored for their deeds and the Hero Association's future was ensured, at the cost of Saitama's popularity.
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    "Demon Cyborg" / Genos 

Genos

Voiced by: Kaito Ishikawa (Japanese), Zach Aguilar (English), Jhonny Torres (Latin American Spanish), Enric Puig (European Spanish)

Debut: Chapter 5 (Webcomic & Manga), Episode 1 (Anime)

https://static.tvtropes.org/pmwiki/pub/images/opm_genos_anime.png
"Incinerate!"

Genos was an ordinary young man until a rogue cyborg destroyed his home town and killed everyone he loved. He was mortally wounded, but a kind scientist saved his life and rebuilt his body. Genos traveled the world in the hopes of tracking down the cyborg responsible for killing his parents, but chooses to settle down with Saitama after a while in the hopes of also becoming more powerful. Whereas Saitama has raw, undeniable strength, Genos has everything else. That is, looks, intelligence, dedication, money, style, and appeal.


  • The Ace: Intelligent, cool-looking, and incredibly powerful. He even becomes one of the top 17 heroes right off the bat. It's just that Saitama blows him out of the water in terms of raw strength, speed and invulnerability.
  • Adorkable: He's way too serious about everything, especially when Saitama is involved.
  • Always Someone Better: No matter how many times he upgrades his body, Saitama will still surpass him in strength. So he asks Saitama to be his teacher in hopes of getting stronger just like him.
  • An Arm and a Leg: It's not a proper fight if Genos doesn't lose at least one limb.
  • The Apprentice: Officially Saitama's after the two of them became professional heroes.
  • Attack! Attack! Attack!: He focuses more on offense, and is always the first one to engage an opponent. While he can be successful in subduing lesser enemies this way, his bad habit of letting his guard down and underestimating his opponent means stronger opponents tend to capitalize on his poor defense.
  • "Awesome McCool" Name: Might be a pseudonym.
  • Awesomeness by Analysis: How he defeats the G4 robot. He used the steam to disperse the laser, enabling him to get close enough to connect the finishing blow.
  • Badass in Distress: As mentioned above, Genos usually loses his body parts, making him helpless until Saitama or any other hero comes to his rescue.
  • Bishounen: A slightly more masculine version than most.
  • Black Eyes of Crazy: Subverted, he's a good guy and one of the heroes.
  • Blade Below the Shoulder: One of Genos's latest upgrades as of his fight against Garou, a combat knife hidden inside his arm of which he demonstrates the effectiveness against a mob of monsters.
  • Boxing Lessons for Superman: Averted. Like Saitama, he turns down a chance to learn martial arts from Bang because he simply doesn't need to.
  • Briefcase Blaster: Genos has a briefcase that transforms into a pair of arms for him to use to fire powerful blasts of energy.
  • Bullying a Dragon: Hurled insults at Tatsumaki after she began insulting Saitama after the alien invasion. Needless to say, it didn't go well for him, to the point that he corrected himself after he tried calling her a brat even though she wasn't anywhere near him.
  • Calling Your Attacks: "INCINERATE!"
  • Character Development: Downplayed. He started off as a cyborg bent on having revenge on the mad cyborg, to a much calmer person who now genuinely wants to protect people. But his doctor remarks that the hate in his heart is still not extinguished even if he has a master and a goal set.
  • The Comically Serious: Most of the humor involving Genos is that he's dark and serious about everything (like paying rent and peeling potatoes) in contrast to Saitama's apathy and lightheartedness.
  • Cyborg: Of the We Can Rebuild Him variety. It's not made clear how much, if any of him, is still organic. He seems to have a spine, and some muscle in the shoulder area, but beyond that...
  • Detachment Combat: Having probably taken a cue from his previous fights, as of his clash against Garou, Genos' limbs can be detached with ease but still be remotely controlled to take an enemy by surprise and fly back to Genos to reattach themselves.
  • Determinator: He definitely qualifies. He will attack monsters without fear until his parts are destroyed. Even losing body parts doesn't stop him from fighting. To the point that he was christened as Demon Cyborg by the Hero Association as a nod to this trait.
  • Deuteragonist: If Saitama's not in the spotlight it's usually him being the focus in the earlier chapters. And he's got more screentime in the anime.
  • Did You Get a New Haircut?: In addition to an exchange of parts, he also had his hair replaced with heat and shock proof fibres. Saitama notices.
  • Distressed Dude: Whenever he loses his limbs. He'll be at the Villain of the week's mercy until someone will come and distract the monster from killing him.
  • Doomed Hometown: He explains that when he was a kid, a rogue cyborg destroyed his home town and everyone he knew, leaving him mortally wounded.
  • Eating Optional: His body is mostly mechanical and has its own internal energy source, but he has the ability to taste and can convert any organic food into biofuel so he can still eat if he chooses to.
  • Expy: Of Casshan, the boy android. Also his backstory is very similar.
  • Even the Guys Want Him: Puri-Puri-Prisoner sees the meeting of the S-class heroes as a chance to get closer to Genos.
  • Failure Hero: Ironically, despite acing his hero exam and instantly becoming an S-Class, Genos is consistently outclassed by his opponents and gets his ass kicked hard on a regular basis. However, even in the face of failure, he never gives up.
  • Fan of Underdog: He's Saitama's first and biggest fan.
  • Fatal Flaw: He has the habit of usually letting his guard down. Ultimately, this causes him to be instantly wrecked by whoever he's fighting. Genos acknowledges this himself. He seems to be getting better with this in later chapters.
  • Funny Afro: When Asura Rhino turns one of Genos' attacks back on him, it makes his hair into this. It stays that way for the rest of the arc.
    • During one of his maintenance sessions with the Doctor, his old hair, still an afro, can be seen on a mannequin head in the background.
  • Glass Cannon: He is powerful, as shown in some of his fights, can create powerful blasts that can destroy enemies and surroundings, and is fast enough to keep up with Sonic. Unfortunately his durability leaves something to be desired. Once his arms are destroyed his fighting prowess lowers considerably. Also, he usually fights enemies that are out of his league.
  • Good Thing You Can Heal: He was designed to be easily repairable, which means that he'll be back on his feet in no time.
  • Hand Blast: He has blasters on his palms.
  • Heroic BSoD: Had a small one when he realized he was no match for the Dragon-level monsters in the Monster Association arc. He also begins to doubt himself after he thinks he's weak because he gave up his human body and relied on artificial enhancements alone.
  • Hero-Worshipper: He idolizes Saitama to the point that he feels the need to pay attention to everything he says in the belief that there is some sort of lesson to it and is willing to be his live-in butler.
  • Horrible Judge of Character: Didn't realize that he was talking with a mob boss in the second OVA. He also believes Saitama to be much more wise and profound than he actually is.
  • Hot-Blooded: Downplayed. He may look like a stoic person but he actually has an aggressive streak. Dr. Stench and Amai Mask remark on this trait.
  • Hunter of His Own Kind: Hates a mad cyborg that destroyed his hometown, and for revenge became a cyborg himself in order to find and destroy it. He doesn't really resent or deny this fact — he just distinguishes himself as a "cyborg of justice" instead.
  • Hypercompetent Sidekick: He's smarter, works harder and generally is more reliable than his teacher. The fact that he was admitted into S-class is a testament to his abilities while Saitama failed the written portion of the test. Plus, he even does household chores!
  • Immune to Bullets: In the 2nd OVA, a mob boss and half a dozen henchmen unload their weapons at him. He doesn't so much as flinch.
  • Innocently Insensitive: Usually comments on Saitama's hair problems, much to the latter's frustration. A good example is him telling Saitama that kombu doesn't help in making hair grow, thinking that he bought so many for that purpose.
  • I Owe You My Life: To Dr. Stench, who saved him after he was nearly killed by the cyborg that destroyed his home town and to Saitama, who saved him from Mosquito Girl.
  • Iron Butt-Monkey: Spends an awful lot of his on-screen time in multiple pieces, thanks to any given Monster of the Week.
  • Know When to Fold 'Em: When he decided to first spar with Saitama, he tries to put a dent in him as much as he can, but when Saitama casually obliterates a mountain range with a playful punch, Genos decides to call his dream of becoming as strong as Saitama quits for the time being.
  • The Lancer: To Saitama. As well as being his self-proclaimed sidekick, Genos is also everything Saitama is not; namely the serious, cool, good-looking kind of guy you'd expect a superhero to be.
  • Lightning Bruiser: He's slower than Saitama, but he's fast enough. His main strategy is to use his extreme speed to get in someone's face and burn them in one go with an energy attack.
  • Made of Iron: Literally. Aside from that, he's survived a major genocide in his hometown.
  • Motor Mouth: This is how he fits the entire length of his life story in one panel, and in the case of the anime, under four minutes. Thankfully this is the only time he did it.
  • Mr. Exposition: In contrast to Saitama's cluelessness within the Hero Association. He's usually the one explaining the inner workings of the association.
  • Mr. Fanservice: Having a cyborg body doesn't stop him becoming one thanks to his bishonen face. He is already ranked one of the top six in terms of popularity in-universe.
  • Mundane Utility: Can blow-dry dishes using his hands, and one of his fingers can transform into a potato peeler.
  • No Social Skills: In the second OVA, he's shown to be this. He didn't even realize that he was facing criminals, thinking they were following a procedure and would give him the keys of the apartment back after he talked. The Mob boss even lampshades it.
  • Not So Different: Realized that Amai Mask could have been him if it weren't for Saitama.
  • Not So Stoic: During their fight with Carnage Kabuto, Genos expressed irritation and raised his voice at Saitama when he told him the secret of his strength.
  • Ooh, Me Accent's Slipping: Downplayed in the Latin American Spanish dub, but Genos speaks with a somewhat notable Venezuelan accent, which slips at times, due to his voice actor hailing from there. Since the dub was done in Mexico, this become very evident during his debut episode, albeit due to him being The Stoic, this is not very notable at times.
  • Overly Long Gag: His entire backstory, as rendered to Saitama. It's incredible how he manages to be so repetitive in terminology and motivations.
    • In written form, it's a Wall of Text.
    • In the anime, it's a more proper form of this: The tone is shifted to serious for a very rapid descent into parody of a montage, as he tells his life story with emotional music in the background and the scene cutting from random background shots showing the passage of time to Saitama becoming increasingly exasperated.
  • Overshadowed by Awesome: Zigzagged as he, Saitama and a few others know who's stronger between the two, but most people think that he is the stronger one and assume that Saitama is using someone else's (possibly Genos') fame, particularly in the entrance exam when the examiner thinks Saitama is nothing to write home about but sees Genos as being pretty impressive.
  • Perpetual Frowner: Played with. Though he does crack a small smile from time to time, it's usually when he's mocking someone. Genos responds to both Sonic and Fubuki with a sneer: one for a ridiculous name, the other for her failed newbie crushing.
  • Person of Mass Destruction: It's downplayed, since this is a gag comic and since he's overshadowed by Saitama, but his arm cannons are ridiculously powerful. Early on, he effortlessly blows up an area several city blocks in radius, and later he destroys the entire House of Evolution (aside from the underground lab) with one hit; during his fight with Saitama, he blows up entire mountains by accident when his attacks miss.
  • Playing with Fire: He is capable of creating a huge wall of fire thanks to his arm cannons. He also uses this to roast his enemies to ashes.
  • Power Palms: Genos's primary blasters are situated in his palms, leading to numerous open palms stances to blow a monster to smitherens.
  • Rapid-Fire Fisticuffs: His Machine Gun Blow.
  • Real Men Wear Pink: Does the household chores for Saitama. Bonus points that he wears a pink apron. Murata really likes to draw him either with an apron or doing chores.
  • Red Baron: Demon Cyborg.
  • Red Oni, Blue Oni: Despite being The Stoic, he's the red to Saitama's blue due to his aggressivity and him being more likely to act before thinking.
  • Reused Character Design: His manga design seems to be a combination of various characters from Eyeshield 21, Murata's previous work.
  • Rocket Punch: Thrusters on his shoulders and elbows allow him to add more power to his attacks.
  • Running Gag: By the end of every arc, Genos invariably ends up losing one or more limbs. He almost broke this trend during the Alien Mothership attack, where he was one of the few to to remain relatively unscathed by the end of the battle. Then he called Tatsumaki a brat, and she threw him into a wall. The anime made sure to continue the gag by having Saitama accidentally yank his arm off while trying to help him back out.
  • Shock and Awe: Genos' fists can release an electrical charge powerful enough to burn out monsters.
  • Sleeves Are for Wimps: Always, to show off his robotic arms. Also justified, as sleeves would never survive his bigger attacks, so having them in the first place would be a waste.
  • Stalker Without a Crush: He stalked Saitama for 5 days trying to find the secret to his powers.
    • Implied in an extra chapter. How else would he know that Saitama has been staring at a vending machine?
  • The Stoic: Nothing fazes this guy, even if his body is wrecked by the monster of the week.
  • Strong and Skilled: Genos brings plenty of firepower to fights and has the physical finesse to back it up, deftly uses his various enhancements to further increase his speed and power in battle, starts off as an S-Class hero, and usually takes a moment to upgrade his firepower and processing after most of his fights. His (regular) failures stem from his Suicidal Overconfidence allowing enemies to land a critical attack on him.
  • Super Speed: He actually manages to keep up with Sonic when the two fight, though Sonic ultimately proved to be faster.
  • Taking the Bullet: He takes a head-on globule of acid that melts through a good portion of his back in order to protect a little girl.
  • Taking You with Me: When he's overwhelmed by Mosquito Girl, he attempts to detonate his core so she'll die along with him. He's saved from that when Saitama turns her into a bloody smear on his apartment building wall.
  • Technicolor Eyes: Black sclera and gold irises.
  • Throw the Dog a Bone: In the manga, while Saitama is tied up with a tournament arc during a massive monster invasion, Genos finally gets to cut loose and takes out monster after monster with little trouble despite most of them being fairly powerful.
  • Tricked-Out Shoes: To gain the advantage against speedsters who like to suddenly appear behind him, Genos's cybernetic feet can stealthily release a puddle of glue to immobilize inattentive enemies.
  • Undying Loyalty: No matter the choices Saitama makes or how he acts, he will always be loyal to him, have his back when he needs it, and won't be afraid to stand up for him. After Saitama defeats the Sea King and puts up a facade to ensure that the other heroes get recognition, he has this inner monologue.
    Genos: Master Saitama. Are you really okay with this? But if this is the path you choose to take, master, I will accept your choice without a word. However, once you've turned the masses against you will you even be able to work as a hero anymore? I can't help but worry about what's to yet to come. If Master Saitama should ever find himself completely cornered, if it should ever come to that, I will.
  • Wave Motion Gun: In episode 7 of the anime, he gets prototype arm attachments that let him fire a powerful incinerating blast, which he makes even stronger by attaching his core to his arm and drawing power directly from it. It fails to stop the meteor he was using it against.
  • Why Don't You Just Shoot Him?: Invoked, then subverted. Upon arriving at the base of operations for the House of Evolution, Genos immediately vaporizes it, much to Saitama's surprise. However, it turns out that most of the base is underground.
  • The Worf Effect: Despite being considered very powerful by a lot of characters he tends to be defeated quite easily by named villains. While normally this would serve the purpose of demonstrating how strong said villain is, and thus a potential worthy opponent for The Hero, Saitama knows better.
  • Yank the Dog's Chain: It looked as though he was actually going to manage to get through the Alien Invasion arc without getting scrapped for once, only for him to call Tatsumaki a brat and get embedded in a wall. In the anime, Saitama completes the running gag by accidentally ripping his arm when trying to pry him free.

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