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    The reason given is Missing Black trigger capture arc and beyond.

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    Background[edit source]

    Yūma's dying body.

    When he was 6, Yūma's father Yūgo Kuga taught him "The Three Teachings:" "protect your own hide," "there's more than one right answer," and "parents aren't always right."[citation needed]

    When Yūma still lived in the Neighbor world, he and his father, Yūgo, participated in the Civil War between Calvaria and Spinthir, helping Calvaria as a favor to a friend of his father.[citation needed] One day, Yūgo told Yūma not to participate in the battle because earlier that day they had found the dead bodies of some of their men, and they were some of the most powerful of their side. Yūma's father suspected it was the result of the other side having a Black Trigger, so he wanted to keep Yūma out of danger. Yūma, however, just pouted and didn't really think much of his father's words.[citation needed]

    After his father had left to go fight, Yūma left Calvaria's fortress and went to the battlefield. Seeing multiple battles he could help win, he decided to make attacks behind the scenes and eliminate some of the enemy units.[citation needed] But before he could do that, he was approached by a mysterious enemy and wasn't strong enough to defend himself, resulting in his death. As Yūma laid there dying, his father came to his aid and took out his own trigger.[citation needed] He then created a black trigger which sealed the body of the dying Yūma inside the trigger, substituting it with a trion body (which is the reason his hair is white); thus saving Yūma.[citation needed] Unfortunately, this took all of Yūgo's power. And so he turned to dust, crumbled and died. However, this does not mean Yūma is immortal; Yūma's real body is sealed inside his ring and is slowly degrading. And once his body inside his ring is fully gone, it is most likely Yūma's trion body will also be terminated.[citation needed]

    Introduction Arc[edit source]

    Yūma is first seen after getting involved in a car accident. Despite being hit by a car, he is unscathed. He rushes to school, late, since he investigated Border HQ first.[1] Arriving at school, Osamu is assigned as his partner. He is picked on by the 3 Idiots but proceeds to overwhelm them.[citation needed] After school, the bullies retaliate, forcing Osamu and Yūma into the Danger Zone. A Bamster appears and begins to eat one of the Idiots.[citation needed] Osamu rushes in to save him but is easily overpowered by it.[citation needed] Yūma decides to use his Trigger to fight the Bamster and defeats it easily. After being asked about it, Yūma reveals that he's not part of Border, but rather, a Neighbor. He and Osamu flee the scene to avoid being found by Border. As they wander throughout the city, Yūma does things, such as taking out a large amount of money in public, to attract negative attention. He proceeds to thrash them, much to Osamu's horror. Yūma explains that this was the norm for him in the Neighborhood.[citation needed]

    The next day, he fends off the 3 Idiots without actually hurting them, which earns him the attention of his peers.[citation needed] When they ask him about his background, he states that he was from a place with a lot of war. It is here that he learns of the First Large-Scale Invasion, and people's hostility towards Neighbors.[citation needed] He nearly reveals that Osamu is a Border member. Osamu takes him to another room and orders him to not say it. He also threatens to report Yūma to Border if he commits a crime. Yūma notes he was lucky to have Osamu as the first Border agent he met.[citation needed] Just then, an Irregular Gate appears beside the school, releasing Marmods.[2] Osamu is insistent on fighting them and protecting the students. Yūma warns him that it would be a certain loss, leading to death, but Osamu goes in anyway. When Osamu is about to be killed, Yūma comes in and uses Osamu's Trigger to defeat the Marmod.[citation needed] He lies to everyone that Osamu destroyed the Marmod to avoid being found out. When Arashiyama Squad comes, he defends Osamu against Kitora's accusations, comparing the situation to whether Border gets authorization from Neighbors to use Triggers. Using his Side Effect, he accuses her of being jealous of Osamu. He is very surprised that Osamu's heroic actions led only to punishment.[citation needed]

    He accompanies Osamu as he is escorted to HQ by Kitora. He gets into more arguments with Kitora. When a Ilgar attacks, he uses his Black Trigger to support Kitora and bring it down. She, however, is not aware of this. 

    He goes to school and is investigating the cause of the Irregular Gates at night. The next day, he reveals he has pinpointed the cause: Rads, Trion Soldiers capable of opening gates. Jin appears and reveals himself, though he promises he would not reveal Yūma's existence to Border. Instead, he is quite curious about Yūma. [3]

    Near Yumite District Station, he tries to ride a bicycle but crashes into the water, horrifying Chika, who has, unbeknownst to Yūma, been summoned by Osamu as well. When the Chika starts running into the Danger Zone, he follows her. When she is attacked by the Bander, he saves her from harm. After Osamu defeats it, he asks Yūma to find a reason Chika seems to attract Trion Soldiers. Yūma has Replica measure her trion, which is unduly large. Miwa Squad, having watched the situation, comes to arrest Chika, believing she's the Neighbor. Yūma reveals it's him and fights Miwa Unit. Despite being initially overwhelmed, he uses his Trigger to copy and strengthen Lead Bullet to defeat his opponents. The outcome of the battle, however, reveals his existence to Border. Kido orders Jin to capture his Black Trigger.[4]

    Black Trigger Capture Arc[edit source]

    Border Enlistment Arc[edit source]

    Large-Scale Invasion Arc[edit source]

    B-Rank Wars Arc[edit source]

    Round 4[edit source]

    Prior to the match, Yūma meets up with Murakami, who introduces him to Kageura.[5][6] After taunting Kageura to just read his mind, Yūma quickly deduces that Murakami lied about Kageura's side effect, to which the older agent explains the true function of, before telling Yūma that he thought the two seemed similar. Later, when Chika tells the squad that she accidentally told Ema about her weakness, he encourages her by noting a strategic advantage that they could use.[7]

    The battle starts, Yūma having been teleported close to Azuma, Koarai, and Tsuji.[8] Under Usami's command, Yūma moves to meet up with Osamu. However, his efforts are hindered by both Tsuji and Kageura.[9] As he is occupied with Kageura, he is unable to reach Osamu before he bails out. When Osamu tells Chika to bail out, Yūma allows her to safely retreat by giving her a boost with grasshopper and guarding against Inukai and Tsuji.[10] Once Kageura and Ema make Inukai bail out, Koarai and Okudera arrive on the scene. The five attackers battle it out, and Yūma goes against the Azuma Squad duo as the three of them have better mobility thanks to grasshopper.[11] He is put at a disadvantage, especially with Azuma sniping his leg off. The five continue fighting until Kitazoe's desperate bombardment reaches them, and Yūma is able to snag a point by cutting off Koarai's head.

    Yūma and Kageura continue fighting until Ninomiya intervenes.[12] Yūma attempts to take Ninomiya down, but is blasted full of holes by the shooter's bullets, causing him to bail out. While frustrated that he was only able to get one point for the team, Yūma seems mostly unbothered by the results.

    Battles & Events[edit source]

    Introduction Arc[edit source]

    Border Enlistment Arc[edit source]

    Large-Scale Invasion Arc[edit source]

    B-Rank Wars Arc[edit source]

    References[edit source]

    1. World Trigger Manga Vol. 1 Chapter 1.
    2. World Trigger Manga Vol. 1 Chapter 3.
    3. World Trigger Manga Vol. 2 Chapter 11.
    4. World Trigger Manga Vol. 2 Chapter 16.
    5. World Trigger Manga Vol. 13 Chapter 108.
    6. World Trigger Manga Vol. 13 Chapter 109.
    7. World Trigger Manga Vol. 13 Chapter 110.
    8. World Trigger Manga Vol. 13 Chapter 111.
    9. World Trigger Manga Vol. 13 Chapter 112.
    10. World Trigger Manga Vol. 13 Chapter 113.
    11. World Trigger Manga Vol. 13 Chapter 114.
    12. World Trigger Manga Vol. 13 Chapter 115.

    Navigation[edit source]

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