The Enforcers The Enforcers , known as Team Satisfaction ( チームサティスファクション , " Chīmu Satisufakushon " ) in the Japanese version and The Protectors ( Die Beschützer ) in the German version , was a group which existed in Satellite . It was formed by Kalin Kessler , who was the leader and also consisted of Yusei Fudo , Crow Hogan and Jack Atlas . They all wore brown vests with their outfits that they wear in the present day events of the storyline ( except for Jack ) . Their Duel Disks are similar to the ones used during Battle City . And currently all of the enforcers except Jack have a criminal mark . The gang was formed under Kalin ' s sense of unity which also helped their fellow companions live through Satellite ' s desperate situations and surroundings . Believing there is no way to get out of Satellite , the only thing they could do was set some sort of satisfaction to their living situation , that being pulling off something big within the city . Satellite was divided into various zones ruled by dueling starved gangs . Eventually , the group was able to conquer those zones until all of the city was claimed by them . During the face - off with the final gang , one of them almost kills Yusei by pushing him off the roof , but Kalin saves him . However after that the team quickly disbanded due to Kalin ' s questionable acts , as his personality soon began to change . This is seen on that incident where Kalin forces a kid from a remaining duel gang to a duel . After he wins , Kalin inexplainably assaults him , but is stopped by Crow as he disagrees with this act and then Kalin punched him . Yusei and Jack broke them up , but Jack along with Crow left the team , leaving Yusei who chose back then to stay with Kalin . Thus Yusei was the only one left remaining for the time being , as sometime later Sector Security began to show up on Satellite and began arresting duelists . Because of this Kalin starts talking about causing an explosion in the Security building , to which Yusei not only disagrees completely with but because of this he then finally leaves . Still Kalin went with his schemely plan and blows up a part of the Security base , being happy about it no less . Consequently to this event , he ends up being pursued by Security , but his former teammates no less came to his rescue . However in what was supposed to be The Enforcers ' last duel , Kalin confronts a Security guard on a Duel Runner and ends up driving through a bunch of crates , severely injuring the guard . Before he could finish him off Yusei interfered and isolated him in a room . Yusei then decided to call himself the leader of The Enforcers in hopes they wouldn ' t arrest Kalin . But security found Kalin and arrest him for murdering a Security . One of the Securities " congratulates " Yusei on " helping " them arrest Kalin ; Kalin then sees him trying to convince the Security to let Kalin go , and he mistakenly believes that Yusei had him arrested . Kalin was presumed dead by Yusei , Jack and Crow until his reappearance as a Dark Signer . He attempts to take revenge against Yusei , but was defeated and later revived after Goodwin ' s defeat . He was last seen in Crash Town , where the team reunites to liberate it from Lawton ' s reign . Kalin remains behind to rebuild the town and care for Nico and West while the rest of the team returns to New Domino City . Non - canon appearances . In and Yu - Gi - Oh ! 5D ' s Tag Force 4 , during the final event of Kalin Kesler ( Dark Signer ) , is revealed that the player was once a member of The Enforcers .