Nangokuren High School
Kanji 男獄煉高校
Rōmaji Nangokuren Kōkō
Also Known As
Location Japan
Manga Debut Chapter 1
Anime Debut

Nangokuren High School (男獄煉高校, Nangokuren Kōkō) is a high school where Rintaro is currently enrolled in, alongside notable students such as the Dragons and his few male friends, Kōsuke, Tamao and Marokichi. This academy is also the primary setting of the manga series where it focusing on Rintaro's journey through high school while struggling to restrain his lust for girls in order to keep his Hentai Syndrome under control.


Nangokuren high

Nangokuren High School

Before Rintaro enrolled into this academy, Nangokuren High School was formerly an all-girls school, that had only recently changed to co-ed. As such, the population of the school was comprised of 99.9% females, with Rintaro and his friends seemingly being the only male student in the academy. Its masculine name (lit. Manly Hell Forge) is what had attracted Rintaro as he had mistakenly believed it was an all-boys school.[1]

Nangokuren High School has an overly violent culture, and abides by the law of nature where the strongest survives, while the weak perishes. As a result, the student body is currently split into a three-way war between three individual factions led by third-year Kyōka, second-year Rino and first-year Ayane. In respect of their immense strength they have been named Dragons.[2]


  • All Girls Bath Hall: This is where all the girls take the baths, and for some reason the place a battle between Rintaro and Ayane's friends and subordinates, Keiko and Makoto, took place after Rintaro seemingly "defiled the sacred place" (Makoto's claims).
  • All Mens Bath: Due to the fact that the school has only just become coed, there were no bathing facilities for the male students. Until one is constructed, Rintaro and his friends are forced to bathe in a kiddie pool where is located beside the All Girls Bath Hall.
  • Student Gymnastic Hall: This is the facility where all the student gathered and where Rintaro and his Brotherhood of Virginity got caught by the Disciplinary Squad for peeking at the girls while dressing. This is also where the former Disciplinary Squad President, Asuna became a school idol and held a concert to hypnotize the students to work for her (all except Rintaro as his phobia not just made him invulnerable to Asuna's song, but also lift his suspicion about her.)
  • Ren Hall: The newly built hall, was a tribute to Ren, Rino's elder sister and a former Dragon of the academy, who won the Batsuzangaisei Ceremony against Meru just before her departure from the academy. Rintaro would then destroy it resulting in his victory, breaking Ren's record in the progress. Interestingly, it's accidental destruction also made Rintaro a living legend for destroying two former school buildings with one blow.
  • Medical Infirmary: A Medical Facility where the student usually get their medical treatment. For example, Meru took Ayane to this facility after Ayane's brief battle against Rino which she loses.
  • First Main Gymnasium: The school stadium located into the heart of the academy that held most of the important events in the academy, including one of the academy traditions, Bakugyaku Festival.
  • Academy Swimming Pool: The school swiming pool where Summer Classes are held and also Rintaro's nightmare (due to his phobia). According to the Kōsuke and Tamao, the pool has a hole that not only didn't drain the water, but also rumoured to send any unlucky stundent into ancient Rome. It is considered as one of the school's Seven Mysteries.
  • Secret Onsen (Later "dubbed" as Tachibana Onsen)'[3]): The hidden Hot Springs where all the female student indulged the hot springs bath. A bigger version hot spring is later created by both Rintaro and Honori despite Rintaro failed escape attempt.

Proficient FiguresEdit



Student Class Fighting Elements Affiliation Introduction
Tachibana Rintaro First Year
(1H Class)
Martial Artist Independent,
Ryōzenpaku (ally)
Rintaro is a special student who suffers the infamous Hentai Syndrome, a bizarre disease that slowly kills him should he become sexually aroused. For this reason, Rintaro practices mediation in order to avoid any troubles that involves women. He is also a mentor and supporter to his fellow classmate Ayane. Currently, Rintaro is paving his path as the academy's first male Dragon.
Ayane First Year
(1H Class)
Martial Artist Ryōzenpaku Dragon of Speed and leader of her faction named Ryōzenpaku, Ayane believes bonds and friendship are her ultimate strength. After witnessed Rintaro's power that separated both Kyōka and herself during their duel, Ayane sought Rintaro in order to improve her fighting skill, a request Rintaro initially refused until he witnessed her sacrifice for her friends. Under Rintaro's training, Ayane able to perform her version of Ryūha Koei Sōgetsu martial arts moves. Ayane was a former Asahina Clan member before her enrollment into the academy.
Kagamiin Kyōka Third Year
(3B Class)
Street Brawler ??? Dragon of Power and one of the strongest Dragons in the academy, Kyōka is one of the most beautiful yet brutal student of them all. Having a strong antagonistic rivalry against Ayane because of her principles that the strong prevails in any battles. After seeing Rintaro's strength that easily intercept their battle and his victory in the Batsuzangaisei Ceremony, Kyōka turns her attention towards the boy since, and also amonst of few who knows Rintaro's Hentai Syndrome.
Rino Second Year Weaponry Master ??? Dragon of Technique and the most cunning among the three Dragons. While she is no means weak in actual combat, Rino would rather use her wits and tactics to win her position as the academy's strongest, all to attempt to surpass her elder sister Ren. Initially dismissive of Rintaro whom she deemed as a roadblock in her quest for power, Rino is impressed over his amazing skills and even viewing him as a "useful" pawn after his victory in the Batsuzangaisei Ceremony.
Keiko First Year Street Brawler Ryōzenpaku One of the co-leaders of the Ryōzenpaku, as well as Ayane's loyal subordinate and close friend, Keiko is the group's powerhouse brawle whose raw strength able to lift large objects with ease. She is also glutton who indulges food so much that she argues with her fellow member Makoto that eating is her priority.
Makoto First Year Weaponry Master Ryōzenpaku One of the co-leaders of the Ryōzenpaku, as well as Ayane's loyal subordinate and close friend, Makoto is proficient in any weaponry, especially her naginata. She is also obsessed to personal hygiene that she often argue with her fellow member Keiko that taking baths is her priority.
Shiryū Chō First Year (1D Class) Martial Artist Ryōzenpaku (Ally) Hardcore fan of Jet Li movies and his fighting styles, Shiryū Chō is Ayane's friend and ranked 2nd among the First Year students. Flexible and astute students, Shiryū was initially skeptical towards Rintaro's skills as a she took them as an "indirect insult" to her idol. Nevertheless, Shiryū seemly admires his quick dodges from her kicks since Rintaro is Ayane's current friend and mentor.
Kako Third Year Weaponry Master ??? Kyōka's loyal friend who is a master of katana skills while begrudging against Meru for forcing her to wear the eye-patch after she lost a bet to her (though Meru teased her that Kako is actually like the eye patch.).
Chiyoko Third Year Street Brawler ??? Kyōka's and Kako's friend who appears to be a grappler of the academy's wrestling club. Possessing her superhuman strength that throw almost anything that heavier than herself which she deems as light as feather. Despite this attributes however, Chiyoko is an out-going yet compassionate student who cares deeply about her fellow students. She would also tends to recruit Shiryū to become one of her wrestling club member.
Misa Third Year Weaponry Master ??? Kyōka's and Kako's friend, Misa is a sharpshooter among the Third Year students who is proficient in archery, with every targets are shot in precise accuracy. Even with her marksmanship however, Misa is a shy yet clumsy girl who got herself in trouble and considered as a liability by some peers, especially Kako.
Asuna Second Year Weaponry Master Independent
Disciplinary Squad (former)
One time president of the Disciplinary Squad and the school idol, Asuna would use her music and charm to hypnotize her fellow students to trick them into buying her merchandise (though her tricks didn't work on Rintaro thanks to his phobia). As one of weaker students, Asuna would use any means, such as holding hostages, to gain an advantage in a fight. Her defeat and failure caused the Disciplinary Squad to be disbanded. She seems to be Rino's former ally as she fantasize about being Rino's "pet" to earn Rino's respect. Since the Disciplinary Squad's dismissal, Asuna begrudged upon Ayane and vowed to crush her, Ryōzenpaku and Rintaro including manipulating Marokichi to do her biding.
Rumina First Year Weaponry Master Independent
Disciplinary Squad (former)
One of the "Twin Winds" of the Disciplinary Squad, Rumina is proficient in sword attacks and often paired with her sister Rurina to attack her target.
Rurina First Year Weaponry Master Independent
Disciplinary Squad (former)
One of the "Twin Winds" of the Disciplinary Squad, Rurina is proficient in sword attacks and often paired with her sister Rumina to attack her target. After the seemly dismissal of the Disciplinary Squad, Rurina has possessed a romantic crush upon Rintaro.
Kōsuke First Year None A.K.B
Brotherhood of Virginity
Rintaro's male friend and Elder Sworn Brother of Virginity.
Tamao First Year None A.K.B
Brotherhood of Virginity
Another Rintaro's male friend and Middle Sworn Brother of Virginity.
Marokichi First Year None (Normal Form)

Street Brawler (Beast Form)

Supernatural (Ultimate Form)
Independent Another rare male student in the academy, Marokichi is a shy yet mysterious student who sulking about his daily troubles while condemning himself for being "useless". Similar to Rintaro, Marokichi has troubles with girls due to his unusual disease. Contrast to Rintaro's counterpart however, his disease allows him to transforme into a hulking creature every time he is sexually aroused, which causing him going on a rampage while losing his sense of reason in the progress. Marokichi is also one of few male students whom Rintaro befriends in their first encounter. After defeated by Ayane's technique, Marokichi became one of Rintaro's friend and allies.
Erin Third Year ??? Meru
Tachibana Rintaro (current)
Meru's friend and personal informant. A person who didn't talk much, Erin only communicates via whispering almost to anyone regardless her allies or rivals. Her entrance is usually signaled by a flock of crows. Since Meru's departure from the academy, Erin became Rintaro's important informant as Meru's "gift" to him. Apparently, the only way Rintaro could ever listen or talk to her is through his invented Paper Phone.
Naomi Third Year Street Brawler Independent Notorious for her dirty trickery while cheating for easy victories, Naomi is an arrogant bully who abuses her power to get what she wants. Nicknamed as the Evil Beauty, Naomi used to be one of the academy's beautiful student in the academy until Kyōka "stole" her spotlight, resulting her grudge against Kyōka and increasing her stress which Naomi relieved via overeating, further shaping her obese body-figures. Staggeringly, she is also capable in returning her usual shape.
Honori Third Year ??? Third Year Faction Cheer-leading club member who famed for her loud voice, Honori is also Kyōka's friend and supporter. Because of her loud voice that sounded larger than a distance sonic boom, even Kyōka found her annoying. She often seen holding a giant flag-pole all the time.
Megu Second Year Street Brawler (Without Dual Tonfa)

Weaponry Master (With Dual Tonfa)
Rino One of Rino's close subordinates, Megu is the powerhouse fight among Rino's faction and specialize in using Dual Tonfas, her main weapon.
Shū Second Year Unknown Rino One of Rino's close subordinates and Rino's professional informant.
Ryōko Second Year Weaponry Master Rino One of Rino's subordinates, Ryōko is a fighter who is proficient in nunchaku. Despite shares her same affiliation with Shū and Megu, Ryōko's relationship with both Megu and Shū are like water and oil.
Iyo Second Year Assassination Arts

Weaponry Master
Rino One of Rino's subordinates and her faction member, Iyo is also student who is proficient in both ninjitsu arts and master of disguise. Despite sharing a same affiliation with Shū and Megu, Iyo's relationship with both Megu and Shū are like water and oil. Despite her expertise however, Iyo's face was the first to be uncovered by Rintaro by accident.
Iori First Year Martial Artist Independent
Ryōzenpaku (ally)
A former Asahina Clan member and Ryūha Kokumu Anten martial artist, who also Ayane's friend. Prior Ayane's departure from the Asahina Clan, Iori was left behind after the latter witnessed Saizō's brutality against his fellow students for power. They reunited during the Summer Break and fought in a duel where Iori was defeated and spared by Ayane. After being rescued by Rintaro from Saizō, Iori eventually reconciled with Ayane and (begrudgingly) befriended with Rintaro altogether.
Ema Brohorse First Year Street Brawler Independent A new student who come from the overseas and enrolled as a new student.


Alumni Status Fighting Elements Affiliation Introduction
Meru Legend Martial Artist Neutral Known as the Tiger, Meru has an easygoing personality. Behind her cheeky attitude however, Meru's strength is so strong that even rivaled the Dragon's own, marking her as one of the powerhouse fighters in the academy. She forged a friendship with Ren, and formed the Covenant of Hagen as a way to test Rino's strength (the idea being the defeat of Meru is equivalent to the defeat of Ren, as Ren and Meru are about equal in strength). Before she departs from the academy, Meru passes the names him her successor in the Covenant and encourages Rintaro to become a Dragon.
Ren Hall of Famer Weaponry Master ??? Former Dragon and Rino's elder sister, Ren was one of the weaponry powerhouse students in the academy's recent history thanks to her mastered sword skills and strong focus. Originally a rival of Meru, the two become friends and forms the Covenant of Hagen as a way to test Rino's strength (the idea being the defeat of Meru is equivalent to the defeat of Ren, as Ren and Meru were about equal in strength). Ren is also the previous winner of the Batsuzangaisei Ceremony, and the namesake of Ren Hall.

Academy FacultyEdit

Staff Position Introduction
Okina Teacher First Year home-room teacher, Okina would be acting as a guide to all the first year students to ensures nobody in her class slack around. Behind her serious side however, Okina would tell her students to find their love while youth in an lewd manner.
Gorozaemon Jinbeenosuke Yonemitsu Academy Principle High authority figure and the oldest veteran of this academy, Gorozaemon is prove to be no push over as he can lift something heavier than him, such as he threw the giant dice during the Bakugyaku Festival. His true strength is often subtle by his aged figure and senile thinking.
Kagamiin Ryōko


Academy Director Kyōka's mother and head figure of the Kagamiin Family[5], Ryōko is also the academy's high authority figure and it's spokeswoman. Opposite to her brash daughter, Ryōko is rather carefree yet refined woman who focused on disciplined yet open mind life as a balance in life. Often teases her daughter in many aspects, especially relationships after seeing her daughter having a long conversation with Rintaro.


  1. Dragons Rioting Manga: Chapter 1, page 26.
  2. Dragons Rioting Manga: Chapter 1, page 35-36.
  3. Dragons Rioting Manga: Chapter 25, page 28.
  4. Dragons Rioting Manga: Chapter 13, page 3.
  5. Dragons Rioting Manga: Chapter 11, page 20-21.


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