Shingo Sawatari ( manga ) Shingo Sawatari is a character appearing in the " " Yu - Gi - Oh ! ARC - V " manga " . He is the # 1 agent of a special squad of the Leo Corporation , working under Reiji Akaba . Design . Appearance . Shingo ' s appearance is very much similar to his anime counterpart ' s appearance : Having short light brown hair with blonde bangs , grayish blue eyes , and wearing a school uniform . Personality . Like his anime counterpart , Shingo is initially shown to have an inflated ego , with his humiliating defeat by Yuya ' s hands causing him to develop a grudge against him . Biography . Three months before the events of the manga , Shingo was recruited by Reiji to assist in hunting down a rogue Duelist named " Phantom " Once the Leo Corporation staff detected Phantom after he hacked into their systems , designated # 1 , Shingo with deployed with Shun Kurosaki and Sora Shiunin in helicopters to surround him all sides . While given the task to catch Phantom in a pincer hold with Shun , Shingo decided to personally confront Phantom on the rooftop he is on and advised him to turn himself in . But Shingo is shocked when the figure revealed himself to be Yuto instead of his intended quarry Yuya Sakaki . Shingo asked Reiji what he should do , receiving new orders to apprehend Yuto as a possible co - spirator which he takes in zeal as he sets up an Action Duel where he overwhelms Yuto ' s " Dark Rebellion Xyz Dragon " with his " Erebus the Underworld Monarch " . In was then that Yuya convinces Yuto to let him handle Shingo for him , Shingo shocked to find his mystery opponent and his quarry are one and the same . Yuya proceeds to use his skills as a Dueltainer and his " Odd - Eyes Phantom Dragon " to defeat Shingo with ease . Following a debriefing with Reiji , further vexed by Sora saying he was not in Yuya ' s league , Shingo proceeded to train on his own . When Shingo learned that Shun has acted on his own to duel Yuya , he reluctantly complies to Reiji ' s order to not interfere . During Sora ' s duel against Yuya , questioning whose side his ally is on before being ordered to observe the match upfold , Shingo ends up arguing with Shun over which of them has the better chance of dueling Yuya . As they watch the duel unfold , musing if Shun committed such an act before , Shingo found much amusement over Shun making a complete idiot out of himself when he openly threatened Reiji as a resort of eagerly believing Sora ' s lies . After they arrived to the damaged Physical Information Company following Yuya ' s win against Sora , returning to Leo Corp and finding their boss missing , Shingo follows Shun to the excavation site where Reiji was last seen . After inspecting the area , the two are trace Reiji ' s Duel signal to the abandoned water treatment plant where Yuya set up his base of operations . Crossing paths with Yuzu in the process , escaping the collapse of the cave where Yuya and Reiji were dueling , the three attempt to find them for over two weeks . Eventually , Shingo joins Shun in breaking into the now closed Leo Corp building to access the supercomputer and find Reiji . Relationships . Reiji Akaba . Shingo is shown to respect Reiji , even when his orders are sometimes vexing . But he is a loyal subordinate since he spent weeks looking for Reiji after he mysteriously disappeared . Shun Kurosaki . As duelists recruited by Reiji , Shingo has a comedic partnership with the stoic Shun . They get into an argument over who should have a rematch against Yuya first , and Shingo enjoyed Shun being in trouble when he got on Reiji ' s bad side over jumping to conclusions . But the two of them remotely get along when needed to . Yuya Sakaki . At first , Shingo ' s relation to Yuya was simply business until he suffered a humiliating loss . Since then , feeling that he could have won it if he was able to retrieve an Action Card beyond his reach , Shingo expressed wanting a rematch . Yuto . Shingo expressed an immediate dislike to Yuto the moment they first met , especially due to the disrespectful first impression that Yuto gave him . At the time , taking pleasure in dueling him when Reiji gave him permission to , Shingo assumed that Yuto and Yuya were separate partners in crime before learning the two actually cohabit the same body . Deck . Shingo plays a Monarch Deck , which is localized an " Emperor deck " in the manga .