Momoha Bonnouji

Name: Momoha Bonnouji

Gender: Female

Age: 27

Occupation: Ethics teacher at Ohana no Mitsu University Affiliated High School; advisor of the Gardening Club

Birthday: October 8 (derived from “Momo” = 10, “Ha” = 8)

Zodiac Sign: Libra

First appearance (series episode): Chapter 108 (her “Bibiiin!!” fated‑love chapter)

Joins the “Rentarou family” as a girlfriend: Chapters 109–110

First confirmed birthday mention: Chapter 133

First kiss / relationship‑defining scenes: Drinking‑party‑play arc and later teacher‑resignation arc

No height, weight, or blood type are specified in the source material.

Momoha is Rentarou’s 21st fated partner and an ethics teacher who lives in a tent on the edge of the school grounds.

She is infamous for being an unrestrained hedonist, yet the story repeatedly reveals how gentle, considerate, and “ethically rich” she truly is.

At school she teaches ethics, a 2nd‑year elective subject paired against politics and economics.

She is also the faculty advisor of the Gardening Club, where student Yamame Yasashiki belongs.

Among the high‑school girlfriends, only Mimimi Utsukushisugi and Kusuri Yakuzen had already met her as students when she joins the family, because they chose ethics as their elective.

Students like Kishika Torotoro who chose politics and economics, and first‑years and below, had no prior contact with her.

Momoha is a wild‑type beauty with catlike eyes, a single protruding fang, and a wolf‑cut hairstyle.

Her hair is originally brown, but she dyed it black to look more “teacher‑like,” then got lazy and never redid the roots, leaving a clear brown‑over‑black gradient.

Her everyday outfit is extremely casual: a tank top with a tracksuit jacket and pants.

She wears the jacket loose and unzipped all the way up, a style she even keeps while standing at the podium.

When pulling weeds or doing outdoor work, she ties the jacket around her waist.

Her private clothes are usually revealing and sexy: off‑shoulder and one‑shoulder tops, crop tops, damaged jeans, and rider jackets that give her a cool, adult vibe.

Within the Rentarou family she is on the busty end, with breasts at least E‑cup class.

In chapter 171 it is shown that she is larger than 18‑year‑old Kusuri Yakuzen but smaller than Kishika Torotoro.

Her image color is a salmon pink, like the flushed cheeks of someone tipsy or the color of a slice of salmon.

On volume 16’s back cover roses, the one representing her is the middle row, left.

Momoha currently lives in a tent at a corner of the high‑school campus.

She uses the sports teams’ shower room to bathe, all with the principal Hahari Hanazono’s official permission.

Before Hahari became principal, Momoha had been living on a riverside near the school for about two years after leaving home.

Now her basic survival is supported by vegetables from Yamame Yasashiki and liquor from her parents’ liquor store.

Inside, her tent is a chaotic disaster zone.

Rentarou thinks it is so messy that Chiyo Iin would “fire a beam to sweep it all away” on sight.

Despite her jokes about being “kicked out” of her parents’ place, the truth is more wholesome.

Her parents worried that if she kept devoting herself to filial piety, she would never build a life or family of her own, so they effectively “pushed her out of the nest.”

She still sends money back home in the form of remittances.

This continues even though she herself lives with minimal material comfort in a tent.

The “Perfect Hand” of Human Vice

Momoha describes herself as a hopeless person, and Rentarou sums up her flaws as a “royal straight flush” of bad habits:

1. Sloppy lifestyle: She is terribly untidy, and her tent is wildly cluttered.

2. Alcohol dependence: She loves drinking and is often tipsy or outright drunk even on school grounds in broad daylight.

3. Gambling addiction: She enjoys lotteries, pachinko, horse racing, boat racing, and similar forms of gambling.

4. Money‑burning: She adores money but spends her salary almost as soon as she gets it.

5. Unfiltered desires: She is ruled by food, alcohol, gambling, and sex, saying she loves “anything called pleasure.”

She jokingly quips that she “spends her paycheck immediately,” loves booze, food, and gambling, and openly states that her sex drive is strong.

By her own admission, she likes all kinds of pleasure with zero shame.

Her gambling luck is truly abysmal.

She never pulls rare items in gacha games and once drew a one‑in‑millions “super‑loser” prize at a ramen shop, then broke down in tears.

Even as a three‑year‑old, she was drawn to a “100‑yen‑per‑draw” candy shop lottery nicknamed “the Swamp.”

She lost, of course, foreshadowing a lifelong losing streak at games of chance.

She used to smoke, but quit because she hated how irritable she became when not smoking.

Her approach is consistent: if a habit makes her more likely to lash out at others when deprived of it, she’d rather drop it entirely than hurt people.

Interestingly, she can cope with being broke as long as it is “inevitable” and not the result of self‑imposed restraint.

Being simply poor is not as stressful to her as forcing herself to resist pleasure.

Honest Hedonist With a Rich Heart

While she calls herself a failure, the story makes it clear she is not rotten at her core.

Her key belief is that people who are kind to her are far more precious than money, because such people are rarer than any jackpot.

She tries to live without ever forgetting gratitude, even when she is materially poor.

“People who treat me kindly” are her ultimate SSRs in a world of 8 billion.

Out of thanks, she helps Yamame Yasashiki with fieldwork in the Gardening Club.

She even buys tools, seedlings, and fertilizer out of her own pocket and helps consume excess vegetables that would otherwise go to waste.

She also expresses gratitude to Hahari Hanazono for allowing her to keep her tent and use the showers.

In return she pulls weeds, picks up trash, and cleans up the school grounds every day.

She once tried to fix her “bad habits,” but realized that depriving herself of spending made her irritable enough to hurt others.

Choosing not to become “virtuous” at the cost of others’ well‑being is, ironically, a very ethical decision.

Momoha is fully aware that she is a “bad example.”

She often tells students, “Whatever you do, don’t end up like me,” making her an extremely convincing reverse role model in an ethics class.

She became a teacher because she believed that “even someone like me can still help the future by supporting students.”

She takes real pride in the work of teaching and in the idea of helping the next generation.

Emotions and Temperament

Momoha’s emotional swings are intense, and she is easily moved to tears or laughter.

She is terrible at “voluntary” self‑restraint, but accepts “inevitable” limitations more easily.

She is a passionate drinker and often appears with a bottle seemingly pulled from nowhere, like a cartoon gag.

She casually offers alcohol to Rentarou even though he is under 20, which he firmly refuses.

She regularly calls herself a “hopeless person” yet treats everyone else with bottomless kindness.

She might be pathologically irresponsible with her own life, but she is meticulous when it comes to helping others.

Momoha’s sex drive is canonically high and played for both comedy and tension.

Her “confession” to Rentarou is one of the most extreme in the series: she skips past romance and directly demands sex.

Even after officially becoming his girlfriend, she keeps pushing his boundaries with seductive behavior.

Rentarou, who insists on staying “wholesome” until the relationship is socially and legally unquestionable, is brought to the brink of losing his composure multiple times.

During a kids’ beer “fake drinking party” she ends up kissing Rentarou while drunk‑acting.

She then tries to lure him further with slurred, flirtatious words before passing out again, allowing his iron will to barely survive.

In conversation with Hakari Hanazono, she reveals that despite her libido and “sloppy” personality she is still a virgin.

She also frankly admits she masturbates “a lot,” and she and Hakari bond over their shared, very explicit fantasies about Rentarou.

She jokes that she is just “waiting until he is an adult” to upgrade from kissing to “more intense things.”

For her, their “pink, happy future” is already reserved.

Despite drinking on campus and living in a tent, she takes the core of ethics seriously.

Rentarou praises her for teaching students to imagine others’ perspectives and feelings in problems that have no single “right answer.”

She calls herself the ultimate reverse example of how not to live, which arguably makes her a uniquely effective ethics teacher.

Uto Nakaji comments that as a “reverse role model” she is almost too perfect an ethics instructor, while Kurumi Haraga notes that real teachers are not supposed to be the bad example.

She warns her students against copying her behavior and emphasizes gratitude and kindness over material success.

Even when she counsels others to follow their desires more, it is always aimed at making sure they also value their own happiness, not just others’.

Momoha’s parents run the “Bonnouji Liquor Store.”

They sell various brands such as “Mugitsu” (barley), “Imotsu” (sweet potato), “Kometsu” (rice), and the special “Momoha.”

Her mother is thrifty and tried to stop toddler Momoha from throwing money at lotteries.

Her father, while a drinker, still reacts like a normal parent when his three‑year‑old asks for money instead of a cute Christmas present, calling her an un‑cute kid for that.

Momoha’s brown hair color comes from her mother.

Her love of alcohol and her single fang are inherited from her father.

The liquor “Momoha” is a fragrant drink made so their daughter would not smell like alcohol all the time.

It uses peach blossoms, and when drunk it makes the drinker’s breath smell like flowers rather than booze.

Because of that, despite being a heavy‑drinking tent dweller, Momoha smells good all over.

The label is clearly named after her, a sign that her parents deeply love her.

When the store later falls into financial trouble, Momoha considers quitting teaching to help at home.

She has been sending them money for a long time, prioritizing their survival over her own comfort.

After Rentarou and Momoha travel to “Bonnouji Liquor Store” and help market “Momoha” to younger and light‑drinker demographics via social media, business recovers.

Their parents initially react in horror to learning she is dating her own student and think they failed in raising her, but they accept the relationship once they understand Rentarou’s sincerity.

First Encounter and Misfire Confession

Rentarou meets Momoha while helping Yamame Yasashiki with Gardening Club fieldwork.

Yamame mentions that their advisor lives in a tent on the school grounds and goes to deliver vegetables.

When Momoha pops her head out of the tent to greet Yamame, she and Rentarou experience the series’ trademark “Bibiiin!!” fated‑love reaction.

After Yamame returns to the fields, Momoha entertains Rentarou alone in her tent.

Rentarou, bound by his personal rule that his love grows over time, does not instantly fall head‑over‑heels in the usual way.

At first he is mostly overwhelmed by how chaotic and emotional Momoha is, thinking she is an extremely expressive person rather than purely “cute.”

Momoha, however, falls for him at first sight and tries to hold back her feelings for a while.

Eventually she cannot suppress them and, in typical Momoha fashion, her “confession” comes out as a direct request for sex rather than romance.

Rentarou is so shocked he tells her to apologize to the beautiful manuscript the artist drew.

He then firmly refuses, saying he will never have sex in a relationship that would get his partner condemned by society and the law.

Because he draws a very clear line, Momoha is able to accept the rejection and back off temporarily.

She even tempts him by showing her chest, and for a moment Rentarou, overwhelmed by love, stares without looking away before snapping back to his senses.

Later, after hearing from Yamame and Hahari about Momoha’s kindness and everything she quietly does for others, Rentarou visits her while she is doing schoolyard weeding.

He tells her that she is not a “hopeless” or “poor” person at all, but someone with an incredibly rich heart.

Moved to tears, Momoha tries to laugh it off, saying that if she were younger she would have loved to have a boyfriend like him.

Rentarou counters by mentioning his 89‑year‑old girlfriend to prove age does not matter, then drops the bomb that he already has 20 girlfriends at that moment.

Momoha, as an ethics teacher, can only stare and ask, “Do you know what ethics is?” while half concerned and half horrified.

Still, after hearing Rentarou’s earnest reasoning and seeing his sincerity, she accepts joining the “Rentarou family.”

Drinking Party Play and Emotional Bonding

To celebrate her joining, Hakari Hanazono proposes a “drinking party play” using kids’ beer so that they can enjoy the atmosphere without alcohol.

The editorial powers‑that‑be of the in‑universe publishing world initially try to veto the idea, but Rentarou bullies it through by using heavy disclaimers that no alcohol or alcohol‑like substances are actually consumed.

The party becomes lively even without real alcohol, showing that Momoha can have fun without drinking.

As the night wears on, the girlfriends gradually fall asleep, and Rentarou carries each of them to bed with great care.

Momoha wakes up partway through and sees Rentarou carefully carrying a sleeping girlfriend.

She suddenly compares it to her usual reality, where she passes out drunk alone in the cold without anyone to take care of her.

Overwhelmed by how lucky she is to have him, she whispers that she loves him too much and initiates a kiss.

High on emotion, she then attempts to seduce him further, but falls back asleep mid‑attempt.

Rentarou’s self‑control, which had been on the verge of collapse, survives only because she passes out.

In the magazine version, a caption declares that his “rationality barely wins by narrow margin.”

Liquor Store Crisis and Teacher Pride

Later, when Bonnouji Liquor Store faces financial crisis, Momoha decides she should quit teaching and return home to help.

Rentarou realizes this goes against her true desire—she actually wants to remain a teacher—and resolves to help save the family business instead.

Together they visit the store and brainstorm a plan to use “Momoha” as a fragrant, approachable drink marketed through social media.

They position Momoha herself as the face of the brand, showcasing how she enjoys the drink.

The strategy succeeds, and the store pulls back from the brink.

With the crisis averted, Momoha confesses that she truly, deeply wanted to continue as a teacher and is relieved she does not have to quit.

She and Rentarou then spend the night drinking together—with only her drinking alcohol, of course.

At this stage she is content to keep their physical relationship at “only kissing,” while dreaming of more once he is older.

Yamame Yasashiki

Yamame is Momoha’s Gardening Club student from her middle school days onward.

Momoha owes her literal survival to Yamame’s vegetables, calling her “my goddess” and “Great Angel Yamame.”

She praises Yamame’s produce as incredibly delicious, once biting straight into a raw daikon radish and shouting how amazing it is.

When they over‑harvest and cannot finish all the vegetables, Momoha and Kurumi Haraga gleefully devour them until Yamame worries they will get sick.

Yaku Yakuzen suggests pickling as a solution to preserve the surplus vegetables.

Momoha and Kurumi practically worship this as creating a “vegetables and white rice perpetual motion machine” worthy of a Nobel Prize.

In the school ghost story arc, Momoha reveals that she is scared of horror by clinging to Yamame’s arm.

But when Yamame faints after seeing a fire‑related yokai, Momoha hoists the larger girl onto her back and runs at full speed, showing that she will protect her students when it matters.

Mai Meido

Mai Meido is the younger sister of Mei Meido and appears on the same volume cover as Momoha.

At 16, she is already working as a maid, and Momoha, who at 16 only cared about slot machines at arcades, admits that Mai is “impressively responsible.”

Mai regularly comes to clean Momoha’s disaster‑zone tent.

Despite Momoha trying to accompany her for exams and offer support, it usually ends up with Mai taking care of Momoha instead.

Their deeper ship dynamics are covered under “MomoMai,” but even in Momoha’s own profile it is clear that Mai is one of the people she leans on.

Hakari Hanazono

Hakari is the principal’s daughter and another girlfriend, sharing with Momoha an intense fascination with sex and with Rentarou specifically.

They first truly bond during the faux drinking party.

In their private, extremely candid conversation, Momoha reveals that she is a virgin despite being 27 and very lewd in thought.

She admits that she masturbates a lot, and Hakari cheerfully shakes hands with her as a fellow “imaginary‑only” comrade.

They start a naughty exchange diary focused on erotic fantasies involving Rentarou.

Momoha later draws on Hakari’s taste for schemes when she attempts to strip Rentarou via a game of strip rock‑paper‑scissors.

However, thanks to her legendary bad luck at gambling, Momoha loses instead and the plan backfires.

Her inability to win at chance remains unbroken.

Hahari Hanazono

Hahari is the school principal and one of Momoha’s bosses, as well as one of Rentarou’s girlfriends.

Momoha reveres Hahari as a saintly figure with a vast heart.

Hahari is the one who officially authorizes Momoha’s tent on school grounds and th