Dai Monohoshi

Name: Dai Monohoshi

Nickname: “Dai with the small lips”

Gender: Male

Date of Birth: 9 September 1965

Age: 17 (at first appearance)

Height: 168 cm

Weight: 50 kg

Blood Type: B

First‑person pronoun: “boku” (a typically male Japanese pronoun, used here with a soft, girlish tone)

Family:

Father: Zaou Monohoshi

Mother: Hiyori Monohoshi

Family Business: Monohoshi Bookstore (family-owned bookshop)

Occupation in main series: High school student

Later occupation: Fashion company employee

Voice Actors: Keneto Shiozawa → Kousuke Okano (1985 adaptation), Kikunoshin Totani (2026 adaptation)

Stage Actors: Yuki Torigoe (stage versions 1–2) → Katsuhiko Ibuka (stage version 3)

Within High School! Kimengumi, Dai is the group’s only openly queer “okama”-type member, though his own self-description leans more toward “girlish, okama‑chic” than strictly transgender or cross‑dressing.

His highly distinctive personality made him so popular that in the first character popularity poll he received votes in both the “male” and “female” character categories, leading to a special award jokingly titled “Which One Prize.”

Dai is portrayed as having an extremely girlish, romantic temperament combined with a subtle, genuine sexiness that even other male characters cannot ignore.

He stands out not only for his looks and mannerisms, but also for being surprisingly brave and reliable when it really matters.

Middle School and the Formation of Kimengumi

Dai first becomes involved with the group while in his first year of Ichio Middle School.

He is invited by Rei Ichidou to join what will become the notorious misfit collective Kimengumi, alongside long‑time eccentrics Go Reiitsu, Kiyoshi Shusse, and Jin Daima.

At the time of the group’s formation, Dai’s ultra‑feminine behavior clashes badly with Go Reiitsu.

Go, who despises what he sees as creepy “sissy” behavior, openly hates Dai’s mannerisms, while Dai in turn loathes Go’s rough, boorish attitude.

Their mutual dislike becomes so severe that they once draw a literal border line between their neighboring seats so they would not have to interact.

Over time, however, the two gradually come to accept each other’s personalities as part of their unique identities and manage to overcome this early friction.

High School Entrance and Repeating Years

Dai’s academic performance is very poor, and he ends up repeating a year twice, including failing his first attempt at high school entrance exams.

Eventually, he secures a spot via a supplemental acceptance at Hitosaki High School, a low‑prestige school known for its very low academic standards.

Soon afterward, Hitosaki High School is merged with the elite Ousei High School to form a new institution, Ichio High School.

Dai and the rest of Kimengumi slide over into Ichio High School as part of this reorganization.

School Life at Ichio High School

In Ichio High School, Dai proceeds through the grades without further repeating years and eventually graduates successfully.

During his school life, he remains firmly part of Kimengumi, participating in their constant gags, misadventures, and over‑the‑top comedy situations.

Despite the chaos, Dai consistently shows a caring, supportive side, especially toward his friends and classmates.

His femininity is never treated as something he will “grow out of,” but rather as a stable, defining part of his character.

Post‑Graduation and Career

After graduation, Dai decides not to inherit his parents’ bookstore, Monohoshi Bookstore, even though it would be the natural expectation for an only child.

Instead, he chooses to pursue his dream of becoming a fashion designer.

He advances to a fashion vocational school together with Chie Uru, one of the main female leads.

Both of them enroll in the same fashion school, where Dai applies his sense of style, sewing skill, and aesthetic sensibility.

After finishing the vocational school without major problems, Dai joins the same fashion company as Chie Uru.

Their routine becomes almost ritualized: every morning before work, the two stop by the liquor shop “Sake no Reigoeshi” (run by the family of Go Reiitsu) and then head to the company together.

Dai’s canonical romantic interest is men, and within the series he is routinely referred to as an “okama” character.

However, his own position is more nuanced: he sees himself as a somewhat androgynous boy leaning toward the girlish side, describing himself as “girlish, okama‑chic.”

He interacts warmly and comfortably with both male and female classmates, showing no bias and making friends easily.

While the manga version shows a bit more of his “ordinary boy” side, the anime adaptation greatly amplifies his feminine traits.

This shift is largely due to voice actor Keneto Shiozawa, who adjusted Dai’s speech and tone through ad‑libbing to bring out a more distinctly feminine voice.

Author Motoei Shinzawa initially complained multiple times about this change from his original image, but eventually accepted it because of the overwhelmingly positive audience response.

Dai is modest, refined, and extremely emotional, often moved to tears.

He secretly writes illustrated poems as a private hobby, expressing his sensitive, romantic worldview.

At night, he is prone to crying in his sleep, and he cannot fall asleep unless he is hugging a stuffed toy.

These traits make him appear more feminine than most of the girls in the series, heightening his unique charm.

His way of undressing is so naturally sensual that even Kiyoshi Shusse, a notorious womanizer, admits that Dai has “real sex appeal.”

This understated but unmistakable allure is one of Dai’s trademarks and often becomes a gag trigger in the story.

Dai’s strongly feminine tendencies are said to come largely from his father, Zaou Monohoshi, who himself has notably gentle and feminine habits.

By contrast, his mother Hiyori does not try to correct or “fix” Dai’s behavior; she understands and accepts him as he is, quietly supporting his growth.

Although other members occasionally attempt to “straighten him out” and change his personality to be more stereotypically masculine, their efforts always end in failure, often with Dai turning the tables on them.

He also inadvertently awakens a forbidden crush in Ichio High School’s delinquent boss Wakazou Temekono, provoking comedic “not‑supposed‑to‑happen” romantic tension.

When he loses his temper and goes fully hysterical, his outbursts can be even worse than those of the other Kimengumi members combined.

At the same time, the author has commented that “when it really counts, he is the most dependable man,” which is reflected in scenes where Dai calmly faces down dangerous delinquents without backing off.

Dai frequently appears in leotards, especially during his self‑directed “beauty exercises” after school.

He also wears women’s swimsuits in certain episodes, and his appearance in them earns cheers from male onlookers within the story.

His delicate figure, pretty face, and mannerisms make these outfits feel natural rather than purely comedic.

Because of this, many fans see Dai as a forerunner of the modern “feminine boy” or “otokonoko” archetype in manga and anime.

His characteristic “small lips” are part of his charm, giving his expressions a subtle, pouty look that matches his romantic personality.

Combined with his slim body and soft voice, Dai’s visual presence is one of the most memorable in High School! Kimengumi.

With Rei Ichidou, the informal leader of Kimengumi, Dai maintains a stable friendship based on mutual trust.

Rei’s invitation is what brings Dai into the group in the first place, and he generally accepts Dai without trying to change him.

Dai’s early relationship with Go Reiitsu is rocky due to their clashing personalities.

Go cannot stand Dai’s soft, girlish manner, while Dai detests Go’s crude, violent behavior, yet over time they develop a grudging respect and eventually a comfortable rapport.

With Kiyoshi Shusse, Dai has a uniquely playful dynamic because Kiyoshi is such a hopeless womanizer.

Kiyoshi recognizing Dai’s sex appeal is both a joke and a subtle acknowledgment of Dai’s genuine attractiveness.

Dai and Chie Uru share a very close friendship, strengthened by their shared path into the fashion world.

They support each other through school, vocational training, and their careers, presenting a warm, almost partner‑like bond even though it is not romantic.

Dai’s interactions with the tough delinquent boss Wakazou Temekono lead to accidental romantic sparks on Wakazou’s side.

This “wrong‑target” attraction is a recurring source of comedy, emphasizing how unshakeable Dai’s queer identity is within the story.

Academic Ability

Like the other four core members of Kimengumi, Dai’s academic performance in conventional subjects is near the bottom of the class.

He struggles with typical schoolwork and is far from being an honor student.

However, he excels in home economics, where cooking and sewing are evaluated.

In this specific field, his ability is so outstanding that even most of the female students cannot match his skill.

During home economics practicals, Dai records scores that rank among the top of his entire year, an exceptional feat for a Kimengumi member.

Unfortunately, Ichio High School does not count home economics as a formal subject for male students, so these achievements do not directly improve his official grades.

Instead, the school notes his surprising excellence in home economics as a special remark, recognizing his unexpected strength outside standard academics.

This becomes one of the running ironies of his character: he shines in precisely the area that “doesn’t count” for boys.

Domestic and Creative Skills

Dai is highly proficient at cooking, capable of preparing dishes so well that many female classmates are left in awe.

His sense of taste and presentation reflects his overall aesthetic sensibility.

His sewing skills are equally impressive and play directly into his later career choice as a fashion designer.

He can design, cut, and stitch clothing with a level of finesse rare among high school students.

His hobby of creating illustrated poems shows an artistic side that goes beyond fashion into literary expression.

These works remain mostly private, reinforcing the image of Dai as sensitive and introspective beneath his comedic surface.

Physical Ability and Sports

In terms of raw physical strength, Dai is not particularly strong, and his build is slim rather than muscular.

Even so, he is surprisingly capable in certain kinds of physical activities.

He enjoys putting on a leotard after school and doing beauty exercises, focusing on flexibility and graceful movement rather than brute force.

This routine keeps him agile and contributes to his poised, elegant body language.

In bowling, his throws are extremely weak in terms of power, yet he somehow manages to score strikes.

This contrast between apparent frailty and unexpected effectiveness is typical of his character.

In swimming, Dai shows impressive capability despite lacking intense training.

Using an old‑style technique known as the “gliding stroke,” he is able to compete evenly with elite swimmers from the school’s swim team.

Through practice, he also develops a unique, modified breaststroke that he can perform using an inward‑turned leg motion.

These unusual strengths in low‑impact, technique‑based sports fit his image as someone who relies on finesse rather than force.

Dai Monohoshi’s character stands out in the history of school comedy manga for his unapologetically feminine, male‑loving persona.

He is often cited as a proto‑example of the “feminine boy” archetype long before such characters became common.

The anime’s interpretation of Dai, shaped heavily by Keneto Shiozawa’s ad‑libbed performance, pushed him further toward a tender, charmingly feminine figure.

This adaptation, initially controversial to the author, ended up being widely embraced by fans and cemented Dai’s enduring popularity.

His unusual result in the first character popularity poll, receiving votes as both a male and a female character, perfectly encapsulates his appeal that transcends simple gender categories.

The specially created “Which One Prize” for him is a humorous in‑universe acknowledgment of how he defies classification.

Within High School! Kimengumi, Dai serves as the emotional and aesthetic heart of the group: sensitive, stylish, occasionally hysterical, but remarkably brave.

When everything collapses into chaos, he is often the one who, against all expectations, stands firm and proves to be “the most reliable man” on the scene.