Dōjima is a legendary mahjong player famous in the underworld. He is the main character in “Lion: King of Tiles Legend” and “Lion: King of Tiles Blood Battle,” as well as the rival and partner of Kei in “Touhai: Ura Rate Mahjong Touhai Roku.” Dōjima is known for his strong intuition, amazing luck, and skill at reading the flow of the game. With striking blond hair and flashy outfits, he is often underestimated at first, but quickly shocks his opponents. Despite loving risk and money, he hungers for thrilling matches against tough opponents more than wealth, often betting everything, even parts of himself. He is sometimes reckless, laughs off danger, and pushes others, especially Kei, to reach their limits. Dōjima is a complex man whose intense play and wild lifestyle have made him very popular, even starring in his own spin-offs.
Dōjima has flashy blond hair, which is his natural hair and not bleached or a wig.
He often wears a white suit with a deep red shirt and gold accessories, looking a bit like a host.
Sometimes, he is seen wearing an eye patch.
His body is large in the original manga but medium-sized in the live-action movie.
Dōjima is bold, confident, and loves gambling and excitement.
He’s quick to read situations and trusts his gut feelings over careful planning.
He has a big appetite for both winning money and proving himself against strong rivals.
Dōjima is not afraid to take risks, even if it means betting something important, including his own body.
His lively and wild side makes him friendly but also intimidating.
He likes women and enjoys teasing his opponents, but also has a complex sense of pride and fairness.
He is often seen as always hungry for more, both for thrills and victory.
He hates boring matches and cares deeply about the true spirit of gambling.
His catchphrase is, “That’s just fine with me.”
Dōjima’s real name is revealed as Kaoru Yasuda in the epilogue of the Massacre Arc.
As a child, he was inspired by the real Dōjima in the underworld and chose to take on his name after losing his toes in a fateful bet.
He is known not only as an individual player but also for being hired as an underground substitute or working in teams when needed.
He values his independence but can make strong partnerships, especially with Kei or other close associates.
Dōjima is a master at sensing the "wave," or flow, of the mahjong game.
He uses his instincts to catch and ride this “wave,” allowing him to make daring plays and sudden comebacks.
Dōjima is not just about power moves—he also uses subtle techniques and clever tricks.
He is famous for betting big and sometimes sacrificing a lot to regain luck and prove his resolve.
Even if he loses, he stays alive and always returns to fight at the top level, showing his strong balance and adaptability.
Dōjima and Kei: Sometimes rivals, sometimes the best partners, their bond is strong and complicated.
He often teases Kei and pushes him to gamble with heart and courage.
Amina: Dōjima once demanded Amina in a bet, but this was likely to provoke Kei rather than out of real desire.
Ishihara (Isshi): Worked with Dōjima as a close partner in the Lion spin-off series.
Tomura: Another important partner in the spin-off stories.
He is seen as both a threat and an ally by many underground figures.
Hideharu Seki once called him “a hungry ghost that can never be filled.”
- Age: 28
- Birthday: August 11
- Blood type: B
- Likes: Gambling
- Hates: Small details
- Favorite food: Kalbi (meat)
- Disliked food: Goya (bitter melon)
Early Appearance in Touhai
Dōjima appears suddenly, facing Kei in a high-stakes bet and losing, but instantly earns Kei’s respect as a rival.
He keeps showing up wherever Kei goes, sometimes as an enemy, sometimes as a dependable ally.
When Kei forgets his true style and plays too cautiously, Dōjima snaps him back to his senses, even physically kicking him.
The Dragon King Tournament
During the Dragon King Tournament, Dōjima suffers from psychological stress and temporarily loses sight in his right eye, wearing a black eye patch.
Despite his handicap, he climbs from 15th to 3rd place in the first round.
He is attacked by thugs and seriously injured, leaving him unable to play, so Kei replaces him in the finals.
He loses sight in his left eye due to the attack, but avoids losing his right eye thanks to his eye patch.
He recovers and then enters dangerous matches seeking revenge.
Revenge and Confrontations
Suspecting Noriyuki Takatsu of organizing the attack, Dōjima teams up with Kei and defeats the Yamasen group.
After confirming Takatsu’s guilt, he breaks all ties with him.
He tries to send his companions Reenya and Suurya home but fails due to paperwork issues, so they join a survival mahjong match, which they win.
Massacre Arc and Beyond
Dōjima joins the 28th Dragon King Tournament after sensing the presence of the mysterious White Elder.
He aims to settle things with this secret boss.
In the Massacre Arc, he partners with Tomura, taking on powerful enemies and fighting to restore his status.
Lion: King of Tiles Legend (Spin-Off Part 1)
As a boy, Dōjima challenges the real Dōjima in a desperate bet and loses all the toes on his right foot.
He adopts the name Dōjima and fights through harsh battles, making a name for himself in the underworld.
He partners with Isshi, faces and loses to the top pro Kuroda Katsu, but regains his joy for mahjong by remembering the fun of simply playing the game.
He enters the “Human Island” tournament with special rules, pays off his debt, and becomes more famous.
Lion: King of Tiles Blood Battle (Spin-Off Part 2)
Dōjima meets new friends like Kuni Hiro and Tomura.
He discovers that parasites have infected him and Tomura from the “Human Island” event.
To survive, they enter more dangerous tournaments, including the Cyber Cup, searching for the real Dōjima.
He finally faces his old idol in a showdown, wins, and takes the right to the name Dōjima and the concept of “wave.”
Dōjima’s popularity is high enough that he stars in his own spin-offs.
He is popular with female fans, and many create fan art of him and Kei.
His blond hair is natural, not dyed.
He is often underestimated at first sight because of his flashy looks.
He enjoys the thrill and purity of gambling more than money itself.
If he finds an opponent boring, he sometimes makes silly demands for fun rather than for profit.
"I am the Lion. If I have to risk my life, I’d rather fight someone big."
Dōjima carries an insurance card with his real name, Kaoru Yasuda, though most people only know him by his underworld alias.
He stands out in both the main Touhai manga and his spin-offs, having a huge impact on the story and other characters.
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