Seasons & Episodes
The monster Matenro appears!
The third term has begun, and a new homeroom teacher has been appointed to class 5 and 3 at Takehaya Elementary School.
our secret base
The monster Matenro, who was supposed to be a fictitious entity, actually appears and steals Hiroshi's precious computer
A terrifying underground exploration
Hiroshi and the five of them form the detective team "Hadogumi" to take on Matenro's challenge. However, as they are ele
Mysterious monster mansion
Hiroshi and his friends suspect that Matenro's true identity is Ochiai Sensei, and begin investigating Ochiai's backgrou
Monster flying in the sky
Susumu is about to jump off the roof of a building!? Hiroshi and his friends run to the school, worried that she intends
Invisible Man
Today is Hiroshi's classmate Kananari Senkichi's birthday. The five members of the Hadogumi attend a big birthday party
Matenro is my dad
Susumu witnessed a housewife, a regular customer of her parents' greengrocer, shoplifting from the store. Susumu tells h
Octopus and Matenro
Satoru suddenly began to wonder how many suckers there were on the octopus' legs. Then Matenro appears and provokes Sato
Nemesis! Inspector Karikiri appears
On the way home from school, Yasuko stopped by the botanical garden with Mr. Ochiai. However, Yasuko is disappointed by
Golden Manju Kannon
A videotape was delivered to Hiroshi by Matenro. When they immediately play the tape at the Hadogumi's hideout, they see
The secret of the time machine
Hiroshi, Yasuko, and Susumu, who found the "path to the future," disappear. Maybe he was kidnapped by Matenro... While M
A World Without Food
The world of 2007 A.D. ruled by Matenro, where Matenro turns weak humans into robots and feeds only the strong, or chose
Matenro's great magic
Today, Satoru is on duty to take care of the weapons of the Hadogumi. I had just witnessed Mr. Ochiai making a phone cal
Yokai Millennium Baba~
A burglar broke into Senkichi's house. Fortunately, Chikichi was not injured, but Mr. Ochiai takes this incident as a le
Magician Ten-O
Yasuko sees a magic show by Ten-O, a world-renowned magician, and becomes inspired to become a magician. At the school n
Sensei is very human
Hiroshi, who has been playing games at home, realizes that he forgot his homework at school. Hiroshi's father also scold
Dangerous cycling
At Yasuko's suggestion, the members of the Hadogumi decide to go cycling. One of the goals is to deepen the friendship a
Kindness thief
Hiroshi was popular with the girls at school. The reason for this, according to Hiroshi himself, is that his "transparen
Angry Mask Appears!!
A series of kidnappings of elementary school students occur. Mr. Ochiai lectures his students on the despicable crime of
Angry mask counterattack
The Hadogumi group is in danger due to the mysterious kidnapping group, the Darkness Clan. The Dark Clan's goal was to f
Matenro's Lullaby
The training camp for the Hadogumi has begun. However, on the morning of the second day, Susumu collapses. Surprisingly,
Inspector Karikiri's Trap
Inspector Karikiri and Takeo's father, Shoichiro, were childhood friends. The two meet again for the first time in a lon
War of Revenge
Takeo is obsessed with bird watching. He was flapping in the early summer sky, staring at the birds with sparkling eyes.
Date truce
Because Satoru's mother is not feeling well, the restaurant run by Satoru's father has to temporarily close, even though
Legend of Shirahone Swamp
In order to capture Matenro, the special training of the Hadogumi continues. However, Yasuko's special training menu was
Messenger from Space
Susumu encounters a flying saucer on her way to the Hakuan's hideout. However, none of his friends believe Susumu's stor
The Girl in the Music Box Mansion
Yasuko receives a call from her classmate Kurumi that her life is being targeted, and goes to the mansion where Kurumi l
Ninja wannabe
Susumu's desire to become a ninja escalates day by day. As Susumu continues his solitary training, Iga-ryu ninja Madara
Secret Card Mystery
Summer vacation has arrived. Takeo and Satoru have a disagreement over where the things that Matenro stole are hidden, a
Invitation from Matenro
Hadogumi continues training to capture Matenro. However, in the middle of the training, the real Matenro appears. Everyo
Mystery! Witch of Chikurinji Temple
Mr. Ochiai brags to Hiroshi and his friends about his old "kidameshi." Frustrated, the five members of the Hadogumi deci
Burn! Mr. Ochiai
Crimes in which young women were slashed in the face were occurring one after another. Ochiai-sensei talks to the member
Farewell Summer Matenro
The members of the Hadogumi went camping during their summer vacation. Hiroshi and his friends look back on the days of
Flower Thief is Matenro
The second semester has begun. However, Hiroshi and Susumu had not finished their summer homework. So Ochiai-sensei orde
Water drinker
A man appears in Hiroshi's neighborhood who drinks nothing but water from morning until night. So, Hiroshi and his frien
Matenro's treasure
Today is an outdoor class. Usually I do a lot of sketching, but at Mr. Ochiai's suggestion, I decided to do a special "t
Matenro's Labyrinth Zone
While jogging in the morning, Satoru happened to see an old gentleman who appeared to be Matenro in disguise. Satoru tai
Romance Smells Sweet
Susumu falls in love at first sight with a beautiful girl he bumps into in the school hallway. Knowing this, Hiroshi and
Sorrowful Matenrokyo
A Western-Chinese priest of Chikurin-ji Temple was appointed as the head priest of the head temple. Hiroshi and his frie
Inspector Karakiri makes a decision!
Inspector Karikiri was summoned by the Superintendent General. Just when he thought his hard work had been recognized an
Mom is a great detective!?
Today is payday for Hiroshi's mother, Hiroko, who works part-time. Hiroko stops by her department store and witnesses th
Yasuko's adventure
Hiroshi became Matenro's servant in order to save his mother, Hiroko. When Hiroshi hears from Matenro that his purpose i
Matenro is a gourmet
A family restaurant opens near the restaurant "Bonbon" run by Satoru's father. Since then, the number of customers has g
Invited by Tanukibayashi
Hiroshi and Yasuko are still good friends. However, Susumu, Satoru, and Takeo also thought about Yasuko in their hearts.
Lock up Mr. Ochiai
One night, Hiroshi went to deliver a letter that had arrived at his house by mistake to the correct address. Then, by ch
Have You Seen Courage?
Susumu can't hide his dissatisfaction when his parents force him to take care of a greengrocer. He announces to Ochiai S
Matenro's Temptation
Takeo has been acting strange lately. He doesn't even try to participate in the activities of the Hadogumi, although he
Dr. Denenchofu's Ambition
In an unusual move, Satoru summoned the members of the Hadogumi. The reason was that a woman's screams were recorded on
Let's go to Matenro Kingdom
The closing ceremony of the second semester came early. Mr. Ochiai uses the example of plum blossoms, which can withstan
Farewell Matenro
The final confrontation between the Hadogumi and Matenrou is now upon us. With the help of the Pachinko group, the Hadog
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