Tsukumojuku Kato (Original Universe)
- Primary work
- JORGE JOESTAR
- Version
- Original Universe
Tsukumojuku Kato (加藤 九十九十九, Katō Tsukumojūku) is a secondary ally of George Joestar (Universe O) and Jorge Joestar (Universe 37) featured in the light novel, JORGE JOESTAR. He is based on the protagonist of Otaro Maijo 's previous novel of the same name, Tsukumojuku, who is in turn a tribute to the character Juku Tsukumo from Ryusui Seiryoin 's Japan Detectives Club (JDC) series.
Tsukumojuku becomes George's best friend and the pair solves several detective cases together. After an accident in 1904 that causes him to travel through time into the 37th universe in 2012, he eventually helps both protagonists as a spirit.

Image attribution details
A source-attributed fan interpretation of Tsukumojuku Kato from JORGE JOESTAR. The author identifies the character and novel; the post does not claim a universe-specific official design.
Fan illustration by thebrilliantdetective, Tumblr, signed DM 2026. Copyright remains with the artist. Displayed as a modest, source-linked character-reference illustration; no author permission, official status or open license is asserted. The wiki text license does not license this artwork.
Original image ↗01Basic information
02Appearance
Although Tsukumojuku is never drawn, he is described as the most handsome boy in George Joestar 's class. He gives off an aura that causes anyone to pay attention to him when he walks into a room or speaks. Tsukumojuku possibly resembles Jesus Christ, based on the appearance of Dio Brando 's Beyond. When George is an adult, he compares Giorno Giovanna 's appearance to Tsukumojuku's, stating that Giorno is the only man he's ever seen that is equal in beauty to Tsukumojuku, as if blinding light is pouring out of every cell in his body that makes it hard to look directly at him. The 37th universe's Jorge also calls Tsukumojuku "very handsome."↗↗↗↗↗
The original Juku Tsukumo in the JDC Series has long black hair that reaches down to his waist. He always wears sunglasses because the National Police Agency has requested that he wear them to prevent people from fainting due to his beautiful eyes. In the Tsukumojuku novel, the parents of Tsukumojuku considered abandoning him because he had a "birth defect of being too beautiful". Later in that novel, he encounters several of his own disembodied heads. They all have long hair and are wrapped around three times with rope to look like crowns.↗↗↗
03Personality
Despite being a young boy, Tsukumojuku speaks in a mature, well-mannered fashion. George states that he is the most intelligent yet also most bizarre boy in their class. As a child detective, Tsukumojuku lacks modesty and is desensitized to gruesome murders. He holds the profession of a detective in high esteem. He always remains calm during cases and is confident that he can solve them, claiming that he has never felt pressured.↗↗
Tsukumojuku can often be cryptic, speaking about Beyond and in a metaphorical sense about himself that George and others do not understand. George notes that Tsukumojuku frequently lectured him to think before impulsively throwing himself into danger.↗↗
In the Tsukumojuku novel, the alternate Tsukumojuku's voice as a baby is way too beautiful that even singing and laughing causes his parents, doctor, and several nurses to faint from hearing it.↗↗
04Abilities
Tsukumojuku has a very good sense of smell. Despite the stench of Antonio Torres 's rotting skin, Tsukumojuku can smell Lisa Lisa 's shampoo from it, as she was hiding inside the skin in order to lure Antonio's killer.↗↗
Beyond
Tsukumojuku has a Beyond, which guided him when he was the protagonist of his own novel. After becoming a secondary character in JORGE JOESTAR, his ability passed on to George Joestar (Universe O), Jorge Joestar (Universe 37), and Dio Brando.↗
05Story
SPOILERS
Background
Tsukumojuku was born in a town called Nishi Akatsuki in Fukui Prefecture, Japan. As a child, Tsukumojuku showed interest in reading detective novels, believing in playing the role destined to "always arrive at the truth." His father's occupation in archaeology allowed him to travel to different places around the world such as Africa. At the age of five, Tsukumojuku moved to Canary Islands with his mother.↗
Not much is known about Tsukumojuku's life in Canary Islands before he met George Joestar, although George describes him as the "lone Asian" in their class.↗↗
1900-1904
Tsukumojuku formally meets George and Lisa Lisa while solving the case of Antonio Torres 's apparent death. Declaring himself a detective, he claims to have solved the case after showing Antonio's corpse to the class, much to everyone's horror. He explains that the corpse was not truly Antonio, but a discarded sheet of skin which was a work of art by Maria Torres, Antonio's mother, after carefully peeling off pieces of her son's skin since he was a baby.↗↗
2012
Not long after the boat's vanishing, Tsukumojuku finds himself in the company of Jorge Joestar in a different Fukui Prefecture, Japan. Jorge meets him after saving him from nearly drowning in Serika Kato 's house, which was strangely filled with seawater. Tsukumojuku introduces himself and says that he had been on a boat before ending up in the Kato's household.↗
In the hospital, Jorge and Tsukumojuku discuss about the map of their worlds. The geography of Jorge's world is completely different from his, where there is only one continent, Panlandia, and the Canary Islands, the Atlantic, and the Kingdom of England do not exist at all. He also tells Jorge about the other Jorge in his world, who helped him solve the case that Jorge happens to be solving as well.↗↗
The next morning, Rohan finds Tsukumojuku's corpse in his study. His naked body, wrapped only in a diamond-shaped red cloth, is discovered mounted on a stuffed polar bear with a slit in his throat and a broad axe slung over his shoulder, resembling the folk tale character Kintarō. As it turns out, Tsukumojuku had been the victim of a series of murders involving two other detectives, whose bodies were made to resemble Japanese folk tales after their deaths.↗↗
A Brief Reunion
From the effect of Cube House, Tsukumojuku's spirit returns to George Joestar to assist him once again. After Darlington Motorize promptly tells George to leave the house, Faraday, the Motorize family's butler, tells him that a friend of his was just waiting for him in the house. He was a young boy who looked like he was in middle school and spoke Spanish at first, fitting Tsukumojuku's description.↗
It is later revealed that although George saw the Japanese kid Tsukumojuku, Faraday saw a Spaniard kid who had no eyes.↗↗
Legacy
Back in Morioh, Jorge Joestar tries to find out who the mysterious figure is that he saw wandering inside Cube House. He checks every room only to find that they are all empty. Reimi then screams after checking the camera that was installed to surveil the figure. The group sees Tsukumojuku Kato captured on the screen merely a few minutes ago, despite being dead.↗
In George's universe, a few years after his encounter with Tsukumojuku's spirit, Lisa Lisa and George reunite and profess their love for each other. Lisa Lisa reveals to him that she became worried after the Tibetan named Tonpetty secretly prophesied that George would die around the time they get married. She starts crying but George promises that he won't die and leave her alone.↗↗
06Plot details
SPOILERS
Personality
He works with adult police officers to solve cases and has no qualms about keeping the dead skin of his classmate as a souvenir for solving their murder case.↗↗
Profile details
Status: Deceased (JORGE JOESTAR)↗
Date of Death: July 24, 2012 (6:30 AM)↗↗↗
Cause of Death: Throat slit by Antonio Torres↗
07Sources & attribution
- Tsukumojuku Kato
Source bibliography (11)
- JORGE JOESTAR Chapter 1: Tsukumojuku Open ↗
- Based on being the same age as George, and George says Tsukumojuku hasn't had his birthday yet. Open ↗
- JORGE JOESTAR Chapter 2: Nishi Akatsuki Open ↗
- JORGE JOESTAR Chapter 4: Morioh Open ↗
- JORGE JOESTAR Chapter 16: Beyond II Open ↗
- JORGE JOESTAR Chapter 15: Beyond Open ↗
- Tsukumojuku - Episode One (Otaro Maijo Novel) Open ↗
- Tsukumojuku - Episode 6 (Otaro Maijo Novel) Open ↗
- JORGE JOESTAR Chapter 7: Airplanes Open ↗
- JORGE JOESTAR Chapter 9: Cliff Open ↗
- JORGE JOESTAR Chapter 13: Enemy Open ↗
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