Debut: Issue #1: What If?
Izuku's mom. Inko has spent the most time raising him while her husband works overseas in the United States to send money home.
- Adult Fear:
- She had no idea how to support Izuku after finding out he was Quirkless and put on weight from the stress of watching him grow up tormented from having what amounts to a genetic disability totally outside of his or her control.
- Her dutiful and responsible son suddenly ditches school after getting the superpowers he wanted his whole life and doesn't come home on time. After he doesn't respond to her worried texts, she sees him run straight up to a highly dangerous Villain and known murderer on live television when the Pro Heroes fail to protect him. It's little wonder she's a bawling mess once he gets home.
- She's aware of her son's new fame as the "Prowler Kid" and is worried that people might try to exploit him for it.
- She knows her son is lying to her about his nightly excursions and wonders what he's doing when she isn't around, especially when his fame could be dragging him into less savory hobbies.
- After her son gets into the school of his dreams, she balks when he's interrogated by the principal about the true nature of his abilities as if he's some kind of criminal. She goes so far as to threaten to pull him out and tells off U.A. for doing this to him.
- Amazingly Embarrassing Parents: She constantly frets over Izuku's well-being and was apparently a Former Teen Rebel. Izuku quickly decides that the less he knows about his parents' younger years the better.
- Doting Parent:
- She clearly care for Izuku's well-being. They cry Ocular Gushers after he wakes up from his short coma and Hisashi rushes to Japan after learning of his son's condition. Izuku loves his parents and calls Inko the best mom in the world.
- Inko worries for Izuku when she got a call from the school saying that he ditched class. Rather than reprimand him for it, her first texts asked "where are you?", "please call me?", and "are you heading home?"
- Once she learns about his "Quirk", she fully supports his ambitions to become a Hero. Rather than reprimand him for staying up all night to study, she gently reminds him to go back to bed and drapes some covers over him to keep him from getting a cold.
- She avoids My Beloved Smother by trusting Izuku to make his own decisions, but can't help but worry if he's going through a teen rebel phase when he starts lying to her about where he's going after school. When she learns he's been keeping her Locked Out of the Loop, she reprimands Nezu for interrogating him and simply asks Izuku not to lie to her anymore.
- Foil: To Mitsuki. Inko is a timid and highly emotional woman who is ever-present in Izuku's life. He holds her in the highest esteem and the two are extremely close. The fiery Mitsuki is constantly away at work and never really got to know her son. He's constantly disrespecting her and she only manages to keep him in line through shouting and violence.
- Formerly Fit: She used to be much slimmer, but the stress of raising Izuku made her gain weight.
- Former Teen Rebel: She admits that she did some wild things growing up as a teenager. This is why she worries Izuku is going out to smoke or meet a girl when he lies to her about where he goes at night. When Nezu asks if her husband broke the law, she tells him no, as she was the rule-bender when they were younger.
- Housewife: She's left to care for her son while her husband works overseas.
- Locked Out of the Loop: Izuku doesn't let her in on his training sessions with Peter or the true nature of his powers to keep her from fretting over him. When she catches him snoring into an open-faced textbook, she wonders why he's reading stuff that clearly isn't high-school level. She's stunned when she learns that his powers don't come from a Quirk and feels terrible that her son was afraid that she'd call him a freak because of them.
- Mind over Matter: Her Quirks lets her move small objects.
- Ocular Gushers: Inko sobs uncontrollably once Izuku wakes up from his coma. His attempts to help her calm down only make him cry too.
- Parents as People: She failed to properly support Izuku after he learned that he was Quirkless, simply hugging him and proclaiming how sorry she was when all he wanted was for someone to tell him that he could be a Hero. After learning about his new powers, she wholeheartedly supports his goal to make up for her past failings.
- Post-Stress Overeating: She started overeating from the stress of raising Izuku after he learned he was Quirkless and not knowing what to do to make him feel better.
- Shared Family Quirks: Inko and Izuku are both highly emotional, timid, and caring. Their Ocular Gushers when they're happy or sad are a sight to behold.
- Stunned Silence: She doesn't know what to say when Izuku demonstrates his Wall Crawling powers to her for the first time. After several agonizing minutes of silence, she decides on crying Tears of Joy.
- Tender Tears: She's sobbing when she sees Izuku rushing straight at a known murderer on television and is still crying by the time he gets home.
- Yamato Nadeshiko: Inko is a beautiful woman even after she began gaining weight. She's kind, mature, responsible, and doting on her son. While she doesn't have the dark hair associated with the trope, her hair is dark green.
- You Gotta Have Blue Hair: Her hair is dark green like her son.
- Your Favorite: She promises to make her son katsudon once he gets back from the hospital. His newfound appetite makes him devour several bowls of it before he's satisfied.
Debut: Issue #1: What If?Izuku's dad. He's always away at work overseas and rarely has time to visit home. When he does come home, he always makes his presence felt.
- Amazingly Embarrassing Parents: Izuku is mortified by Hisashi's casual wardrobe and decides that the less he knows about Hisashi's college years the better.
- Ascended Extra: Downplayed. Hisashi actually comes to visit his son in the hospital after the spider bite. He cares enough to bring Izuku sweets, comic book, and movies while making sure he's okay, but Hisashi has to return overseas not long afterward. Izuku also makes mentions of his dad, which he never does in the manga.
- Rummage Sale Reject: His casual clothes include a pink shirt with "JUICY" written across the back and sweatpants that have "BIG BOY" written on it.
- Punny Name: His name is a pun off, "hisashiburi", or "it's been a while", which is customary to say after you haven't seen someone in a long time. Sure enough, Hisashi is rarely home and is mostly mentioned in passing.
Debut: Issue #1: What If?
The doctor who diagnosed Izuku as Quirkless, changing his life forever. They meet again when Izuku is bitten by a spider, overseeing his treatment and admonishing him for continuing to chase his impossible dream.
- Bearer of Bad News: He's the one who told Izuku that he's Quirkless.
- Brutal Honesty: Dr. Tsubasa tells a four-year-old Izuku in no uncertain terms that he should give up his dream of becoming a Hero. When they meet again ten years later, Tsubasa admonishes Izuku for continuing to cling to that dream and says he should be looking to become a police officer instead.Tsubasa: You should probably give up, already.
- Contrived Coincidence: The doctor who crushed Izuku's hopes and dreams by telling him he was Quirkless and that he should give up on being a Hero happens to be treating him for his spider bite. It's implied that this wasn't a coincidence when it's revealed that he's been keeping samples of Izuku's blood.
- Labcoat of Science and Medicine: Wears one and is a doctor.
- Lennon Specs: Wears dark green ones with brown frames.
- Morally Ambiguous Doctorate: It turns out that he secretly kept several vials of Izuku's blood and plans to "change the world" with it.
- Small Role, Big Impact: His diagnosis changed Izuku's life up to the point that he was bitten by the spider.
- You Are a Credit to Your Race: Dr. Tsubasa is impressed that the immune system of a Quirkless kid like Izuku managed to weather out the spider's venom with no adverse long-term effects. Izuku is naturally hurt by yet another reminder of his Quirklessness, but Tsubasa doesn't seem to notice. Given his Brutal Honesty to Izuku ten years ago and repeated insistence that Izuku find other work, he likely doesn't care.
Debut: Issue #5: Learning Curve
The mustachioed cashier of a costume shop. Izuku stops by Seto's store as it's the only one around with a Spider-Man costume in stock.
- The Cameo: He's the story's equivalent of a Stan Lee cameo, complete with sunglasses and slicked back hair.
- Leaning on the Fourth Wall: He remarks that Spider-Man is his favorite and is pleasantly surprised when Izuku decides to purchase that particular costume, asking him if he likes going old-school.
Debut: Issue #5: Learning Curve
Bakugou's mom. Like her son, she's fiery, strong, and confident with zero tolerance for people who disrespect her. But she wants the best for him and is dismayed to learn how sour his attitude has gotten while she was busy at work.
- Abusive Parents: She tends to discipline her son with brute force and massive earfuls, neither of which have particularly endeared her to him.
- Adaptation Expansion: Mitsuki is given a backstory here: born into a Burakumin family in a rough neighborhood and wanted out so her child could live free of the stigma that comes with it.
- Almighty Mom: Her word is law in the Bakugou household and Izuku notes that Katsuki wouldn't act up when they hung out at his house while she was around. But her influence seems to have waned by the time he's a teenager, as he gets into shouting contests with her and frequently disrespects her, not that her tendency for corporal punishment helps matters.
- Distaff Counterpart: Appearance-wise, she's a female and older version of her son, complete with fiery temper.
- Doesn't Know Their Own Child: She spends long hours at work and doesn't pry into Katsuki's social life. Because of this, she doesn't understand just how poor his attitude has gotten or that he has no real friends until she speaks with Izuku for the first time in a decade.
- Dope Slap: Often gives these to Katsuki whenever he's acting up.
- Embarrassing Tattoo: She has an old tattoo that she got when she was 16 as part of a Rite of Passage in the rough neighborhood she grew up in. She tends to keep it covered up due to the stigma against them in Japan and is surprised when Izuku says it looks good on her.
- To Inko. Inko is a timid and highly emotional woman who is ever-present in Izuku's life. He holds her in the highest esteem and the two are extremely close. The fiery Mitsuki is constantly away at work and never really got to know her son. He's constantly disrespecting her and only manages to keep him in line through shouting and violence.
- To Katsuki. While they both possess similar temperaments, Katsuki was born into a stable, upper middle-class household thanks to his mom's efforts and grew up with constant adoration and praise for his talents. Mitsuki was born into a Burakumin family, growing up in a rough neighborhood and being targeted for discrimination until she clawed her way out. She also admits her mistakes and is friendly to those she cares about, compared to her son's tendency to backpedal into old habits when his ego is bruised.
- Former Teen Rebel: She implies that she was part of some rough gangs growing up, as indicated by her tribal tattoo, which she finds more embarrassing than anything.
- Hair of Gold, Heart of Gold: Downplayed. She's got sandy blond hair like her son, but is a warm and friendly woman who happily offers Izuku a ride home and worked hard to secure a good life for her family. However, she has a nasty temper and a tendency to get physical when her son is acting up.
- Opposites Attract: Mitsuki is a fiery and strong woman but calls her husband Masaru a wet blanket by comparison.
- Parental Neglect: Mitsuki worked hard to earn a better life for herself and her family, but her busy work life left little time for her to spend time with or get to know her son. Because of this, she's oblivious to how badly Izuku's and her son's relationship has deteriorated and believes they're still close until Katsuki throws a fit in the car.
- Parents as People: She deeply loves her son and husband, but is so busy at work that she isn't as much of an influence in her son's life as she wants to be. She's dismayed at how she let him become such a domineering Jerkass and pleads with Izuku to not give up on him. Her discipline usually consists on yanking on her son's ear and shouting at him, which contributes to his lack of respect for her.
- Red Eyes, Take Warning: Zigzagged. She's warm and friendly to Izuku and congratulates him on getting his Quirk and for his bravery during the Prowler incident. But she tends to get physical during her spats with her own son.
- Self-Made Woman: She worked hard to build up the financial and social clout necessary to shed the stigma of being born into a Burakumin family because she didn't want her child to grow up with the same prejudice she faced.
- Stacy's Mom: The first thing that strikes Izuku after seeing her for the first time in years is how stunningly beautiful she is.
- Strong Family Resemblance: Katsuki is practically a gender-flipped carbon copy of her.
- "The Reason You Suck" Speech: She gives one to Katsuki after she finds out just how horrible and petty he is to Izuku.Mitsuki: So that's it, huh? You got pissed that something didn't go the way you thought it did and decided to beat up someone for it? Like a spoiled little brat? [glares at him] You goddamn idiot! You want to blow your shot at being a Hero? Huh? You want to throw a temper-tantrum whenever the world doesn't go your way!? Welcome to reality, brat! The world doesn't bow to you! You keep at this, then you're just going to become a friendless has-been who blew his opportunity for a successful life because he !
Katsuki: I don't need to hear this shit! [throws the door open and stomps out of the car]
Debut: Sidestory - Anything for a Top Story
A reporter for a news network that reports on Heroes. She's fallen on hard times due to her inability to get U.A. to open up to her while her rivals get easier, juicier materials. After being assigned to cover the Spider-Man vigilante, she decides to abuse a provision in her contract to jumpstart her career.
- Bad Boss: She's demanding and demeaning towards her unpaid intern and asking what they're paying him if he's dragging his feet to get her latte. She also keeps calling her cameraman Joey when his real name is Jonouichi, a nickname the man clearly dislikes and its hinted this is not the first time he reminded her what his real name is.
- Cigar Chomper: She's a fan of the Cuban cigars her husband brings her and smokes one while trying to come up with a way to drive up her view count.
- Expy: Of J. Jonah Jameson. She's a cigar-chomping, Happily Married reporter who writes sensational stories about Spider-Man for personal profit.
- Gonzo Journalism: She resorts to this to start getting views and clicks by spreading conspiracy theories about the Spider-Man and the Spider-Man villain copycats. However, she makes no illusions that what she's saying is her opinion, but she figures that if she can't make the vigilante famous with an exclusive interview, she'll make him infamous.
- Happily Married: She's happily married to her husband Taiju and laments that her work leaves her unable to see him until late at night.
- Named by the Adaptation: She's a nameless background extra in the original My Hero Academia, but she's given a name here.
- O.C. Stand-in: She only appears for a few seconds in the original My Hero Academia as an excited reporter. Here she's given traits similar to the Raimi version of JJJ.
- Proud Beauty: She's confident in her looks and practiced how to look serious without scrunching up her features to avoid ruining her appearance.
- Punny Name: Her last name, "Oosawagi", means clamor or uproar, referencing her loud and demanding personality.
- With Great Power Comes Great Perks: Her Quirks render her immune to nicotine addiction and most forms of cancer, which lets her smoke all she wants.