Hirutani Hirutani , known as Diesel Kane in the English version of the " Dungeon Dice Monsters " video game , is a leader of a gang of teenage extortionists from Rintama High School that wield super - powered yo - yos . Hirutani tried to force Jonouchi into his gang by any means necessary . The English name , Diesel Kane , stems from a gang member character in named " Diesel " . Biography . During middle school , Hirutani hung out with Katsuya Jonouchi as part of a gang who would spend their time picking fights with gangs from other schools , even high schools . After middle school , Hirutani went to Rintama High School , while Jonouchi went to Domino High School . Hirutani gang filled up with Rintama High School students . He began recruiting older members to try expand his turf and asked Jonouchi to rejoin . Jonouchi refused at first , but agreed after Hirutani threatened to beat up everyone in Jonouchi ' s class . Yugi Mutou , Anzu Mazaki and Hiroto Honda spotted the gang picking a fight outside the American Club , and Yugi pleaded with Jonouchi to leave the gang . Hirutani told Jonouchi that he was too nice for letting Domino kids like this follow him around , and said he should have come to Rintama . One of the gangsters punched Yugi , and the gang proceeded to J ' z . However , Jonouchi decided he had had enough after that , and started a fight with the boy who hit Yugi . Hirutani was glad to see Jonouchi ' s fighting spirit back , but since it was targeted at them , he ordered the rest of the gang to seize Jonouchi and bring him to their torture chamber . At the torture chamber , Hirutani had the gang tie Jonouchi arms to a hook above his head and attack him with stun guns . He ordered the gang to continue to attack Jonouchi , despite concerns that it could kill him . However , Dark Yugi interrupted . He let himself be hit by a gangster in order to lure the gang into a puddle , and secretly placed a bar under an unconscious member ' s arm . Dark Yugi challenged the gang to a game , warning them that there was a time bomb at their feet that would go off if they couldn ' t find the switch in time . One of the gangsters thought Dark Yugi was bluffing , but Hirutani pointed out that if they used their stun guns in the rain over the puddle , they would get electrocuted themselves . He ordered the gang to attack without using the stun guns . However , they did not find the true switch in time , and the unconscious member woke up as water dripped on his forehead , causing him to drop his stun gun in the puddle , electrocuting the gang . At a later date , Hirutani used Nezumi to lure Yugi and Jonouchi to the torture chamber . He then had his thugs try to get Jonouchi to join by pulling a hook upwards to strangle Yugi with his Millennium Puzzle . After saving Yugi , Jonouchi and Hirutani engaged in a fistfight . Jonouchi punched Hirutani in the face , but Hirutani then threw glass in Jonouchi ' s eyes . Hirutani tried to place a shard of glass in the back of Jonouchi ' s neck . However , Jonouchi detected Hirutani ' s location as he stepped on broken glass , and punched him off the roof . Hirutani grabbed onto a ledge , but Jonouchi used his yo - yo to hit Hirutani ' s fingers , causing him to fall to the ground .