Ginji Kyuma (久間 欣治, Kyūma Ginji) is a supporting character in Alice in Borderland. He is the King of Clubs(クラブのキング, Kurabu no Kingu) in the Borderlands. He is portrayed by Tomohisa Yamashita.
Kyuma is a tall middle-aged man of a muscular build. He has straight shoulder-length black hair and dark brown eyes. Throughout the game, he appears as nude, wearing no shirts, pants or shoes, which is criticized by his teammates and which makes players uncomfortable, though his genitals are always out-of-sight, hidden through specific angles. His buttocks are often seen when he is presented at a back view.
One of his defining features is that he takes pride in being nude. He deems wearing clothes a "social construct", claiming that nudists have been around for many years.
Despite being on the other side of the games as a Citizen, Kyuma does not pose himself as an antagonist and acts amicably towards the people he plays against. He does not seem to enjoy players' suffering, does not use dirty tricks during the game, and attempts to guide Arisu with his example, sharing his views on how to be a good leader. As highlighted after the points distribution, Kyuma treats his teammates as equals, which is why he gives them all an equal amount of points, even though it might not be strategically practical. At the end of the game, he trusts Arisu and shakes his hand, failing to see through Tatta's plan, which results in his team's defeat and the impending death of all his friends. Even so, he accepts his demise with pride, dying without regrets.
Back in the real world, Kyuma was a vocalist of a music band called "The Sology", along with Shitara, Uta, Maki, and Goken. They were successful musicians with a big audience. After their last concert, they discussed their score, and Kyuma suggested picking the person who did the worst during the concert to be a driver for others.