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    Background[edit | edit source]

    At some point in his past, his mother was killed by a Neighbor.[1] He was a member of Border before it went public.[2] Before the start of the series, he saved Osamu from a Bamster when the latter attempted to sneak into Border.[3][4]

    Jin saving Osamu.

    He went on several missions to the Neighborhood, getting to know that Neighbors weren't all bad.[5]

    Introduction Arc[edit | edit source]

    Jin is first seen sitting upon slain Trion Soldiers. He comes to Osamu when his punishment is being decided by the upper echelons. He defends Osamu, saving him from being dismissed from Border. Later, he meets Yūma, who has information regarding the Rad Infestation. He next appears during Yūma's battle with Miwa Squad. He persuades Narasaka to not shoot Yūma, and then comes at the end of the battle. He and Osamu are sent back to Border's echelons, this time Osamu is in trouble for hiding a Neighbor. Kido orders Jin to steal Yūma's Black Trigger.

    Black Trigger Capture Arc[edit | edit source]

    Jin refuses to obey, forcing Rindō to order him, though Rindō orders him to go about it as he wished. He meets with Yūma and asks him to join Border, stating that he would be safer. Yūma goes to Border only to find out about his father's acquaintance, Mogami, only to find out that he passed away 5 years before. He was also Jin's mentor, and the one who became Fūjin through death. Hearing about this, Yūma considers returning to the Neighborhood, but Jin persuades him not to, stating that it would be a lot of fun to be on this side. Jin's words help; Yūma decides to join. However, as Border Official Enlistment day did not occur, he was not an official member of Border meaning that Border could hunt him down. Kido uses this to his advantage by sending Border's top three Squads after him. They, along with Miwa Squad, are intercepted by Jin and Arashiyama Squad and get into a fight. Jin fights his rival, Tachikawa, and claims victory over him, and subsequently, over his foes. The conflict is still not over, as Kido threatens to send Amō. To ensure Yūma's safety, Jin offers Fūjin in exchange for Yūma's safety and guaranteed enlistment. The deal is successful, leading to Jin being demoted to A-rank and losing his Black Trigger, but at the same time, Yūma could now not worry about being pursued by Border.

    Border Enlistment Arc[edit | edit source]

    After Yūma, Chika, and Osamu make their flashy debuts on Enlistment day, Jin receives a call about it whilst defeating Bamsters. He says that there were more surprises to come. After Yūma's battle with Midorikawa, he summons Osamu and Yūma to the meeting regarding the predicted invasion. There, he listens as Replica explains about the Neighborhood. He reveals that he can't see who the invaders will be since he has not met them. After the meeting, he goes to the rooftop to ask a favor from Miwa. He explains that in the upcoming invasion, Osamu would get himself into a predicament, at which point Miwa would have to save him. As payment, he offers to recommend Miwa for possession of Fūjin. Miwa refuses, but Jin assures him he would when the time came. When the invasion is about to begin, he notes that they were early, and prepares for battle.

    Large-Scale Invasion Arc[edit | edit source]

    He and Amō are sent to the west and northwest to fight the Trion Soldiers there. When Amō is done with his part, Jin has him take over his own. He uses the opportunity to reunite with Yūma. He tells him of the worst future: Osamu's death. To prevent it, he and Yūma had to fight the invaders. He reveals that he got permission from Kido to have Yūma fight at the edge of the Danger Zone. He and Yūma travel there. When Viza and Hyuse pursue Chika, he and Yūma intercept them. Since he and Yūma were unfamiliar with each other's abilities, they decide to fight separately. Jin fights Hyuse and lures him into an underground tunnel. While Hyuse seemingly has the advantage in the darkness, Jin taunts him by revealing that he would be abandoned. Enraged, Hyuse charges at him, but Jin traps him with Escudo. Hyuse manages to break out of the shield and they keep fighting until Hyrein takes off without him, effectively marooning him on Earth. A car drives up and Jin recommends that Hyuse turns himself in, lest he suffers a worse fate. While Osamu was in a coma, he came and apologized to his mother repeatedly, unbeknownst to them why.

    B-Rank Wars Arc[edit | edit source]

    Round 1[edit | edit source]

    On February 1, Jin approaches Karasawa regarding the reason he had Osamu counter the reporters' accusations. Karasawa explains how he wanted Osamu to have a chance to defend himself. He also explains to Jin that the applications to Border increased to 130; five times the number of withdrawals.

    Round 3[edit | edit source]

    on February 8, he serves as a commentator during Tamakoma Second's battle with Suzunari First and Nasu Squad. He predicts Yūma, despite his adversary Kō Murakami being more powerful, which ends up being the case.

    Round 4[edit | edit source]

    A week later, he watched Tamakoma Second's battle with the upper B-rank teams. When Hyuse points out how weak Tamakoma Second seems compared to their opponents, he makes a bet with him; if Tamakoma Second wins then Hyuse would do any one thing for him, and if they lose, vice-versa. Hyuse wins in the end, but does not make any demands. At nighttime, he is on the rooftop, when Osamu approaches him, asking if he would join Tamakoma Second. Jin responds that unfortunately, he could not. He then goes to a meeting, regarding a predicted invasion from one or both of Aftokrator's vassal states: Galopoula and Rhodokhroun.

    Galopoula's Invasion[edit | edit source]

    Jin reveals that he went around the city, seeing the futures of various civilians, and saw no deaths or kidnappings among them. However, as his Side Effect cannot see the futures of anyone he hasn't seen, he could not predict the enemy's actions. Sometime before the invasion, he regained Fūjin. When the invasion occurs, he attacks Gatlin, Orkan, and Wen Sō with Fūjin. However, their intel from Aftokrator helps them counter and escape from it. He ponders whether he should stop the intruders, or help the forces outside, when Yōtarō enters the battlefield; insistent on rescuing Hyuse, forcing Jin to prepare to deal with them.

    When Yōtarō confronts Hyuse in front of Reghindetz, it is revealed in a flashback that Jin gave Yōtarō Hyuse's Lampyris after discussing what Yōtarō would do if Hyuse wished to go back to Aftokrator.[6] Jin spots Yōtarō from a nearby rooftop and prepares to intervein with Fūjin when Hyuse brings out a Scorpion weapon but ultimately does nothing as Yōtarō appears to be stabbed.[7] As it show later that Hyuse simply cut Yōtarō's coat, it can be presumed that Jin did not intervein because of his foresight. After Hyuse defeats Reghindetz, Jin complements him and Yōtarō on their acting ability. Hyuse reminds him of their previous bet and choses his prize to be Jin getting him back to Aftokrator, no matter the cost. Jin then offers him a position on Tamakoma Second.

    Round 5[edit | edit source]

    Jin then takes both of them to watch the Tamakoma Second vs. Katori Squad vs. Kakizaki Squad match.[8] At the end of the match, Jin comments to Hyuse that Osamu will soon have a lot of work to do since Hyuse will be joining his squad.[9]

    Post-Round 5[edit | edit source]

    After the match, Jin serves the victory dinner at Tamakoma Branch HQ.[10] When Osamu expresses concern about hiding Hyuse's true identity, Jin suggests saying that Hyuse is related to one of Tamakoma Branch's engineers, Michael Cronin, who is also a Neighbor in secret. Jin tells Osamu that the real issue lies in getting the Administration to agree to allow Hyuse to join Border.


    Away Mission Test Arc[edit | edit source]

    Jin is seen amongst the other A - rankers spectating the Away mission test members [11] but he doesn't take part in allotting marks to or from the teams. He is aware of the the top brass plans and is summoned by them to help mark the special assignments [12]

    References[edit | edit source]

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