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    Background[edit source]

    Izumi joined Border 3 years ago[1], and at some point he joined Tachikawa Squad as well as made Composite Bullets.[2]

    Not long before Mirai Hatohara left[3], Masataka Ninomiya begged Izumi to teach him[4][5] despite being rivals[4], and Ninomiya already being the No. 1 Shooter.[5]

    Black Trigger Retrieval Arc[edit source]

    Izumi appeared as part of the strike force to take Yūma's Black Trigger.[6] Under Tachikawa's orders, he teamed up with Miwa and Yōsuke to stop the Arashiyama Squad.[7] He wanted to start the fight quickly, so he could return to Tachikawa.[8] However, the attack stance was a ruse to lure out Satori instead.[9]

    He noticed the first bailout[10], wondering out loud on who is being stalled at that point.[10] He and Miwa then start fighting Arashiyama Squad.[11] He attempted to take down Arashiyama[12] but Arashiyama teleported and with the help of Tokieda[13], nearly took him down.[13] Miwa’s warning gave him enough time to protect his heart and head.[14] When Yōsuke dragged Kitora from one of the building windows[15], he called Izumi to shoot her down.[15] Tokieda blocked the shots.[16] Tōma took down Tokieda, and hit Kitora's leg[17], to which Izumi complained.[18]

    After Arashiyama and Kitora ducked into narrow alleyways[19], Izumi wanted to level the houses[20], but he was chided by Tōma.[20] They decided to head off towards Tachikawa to draw the two out.[21] The moment they found him, Izumi launched Meteor on Arashiyama[22], but he withstood it thanks to Shield.[23] He and Miwa were about to eliminate Arashiyama[24], but Satori managed to snip off their attacking hands at the same time.[25] Izumi complained about the fact that they lost.[26]

    Large-Scale Invasion Arc[edit source]

    Shinoda ordered Izumi, Midorikawa, and Yōsuke to help Tamakoma First[27], however, Ranbanein was in the way.[28] They decided to defeat him there.[27] He viewed Azuma Squad’s battle record[29] and was once again called a bullet idiot by Yōsuke.[30] He contacted Azuma and asked for support.[30] He called his two companions fodder when Azuma expressed concerns.[31] He summoned Meteor and Viper and merged them together to make Tomahawk.[32] Using the merged attack, he shot around the corner of the building towards Ranbanein.[33] Ranbanein fired through the building, nearly hitting him.[34] Izumi ran for cover when Ranbanein took to the sky to rain fire from above.[35]

    After Ranbanein and Midorikawa battled it out[36], Ranbanein was forced to retreat.[37] Izumi fired after him[38], chasing him towards where Arafune and Azuma were waiting to snipe.[39] Izumi continued to push him in a certain way[40], chasing him in Yōsuke’s direction.[40] After the battle, he announced his intention on joining up with the C-rank trainees and helping them.[41]

    The small team joined up with Osamu and Karasuma who were protecting C-rank trainees.[42] Izumi jokingly asked Karasuma where his tears of gratitude were.[43] Karasuma asked them to help protect the trainees and get them to base.[43] Izumi agreed and used the asteroid to draw off some of the Rabbits.[44] One of the rabbits he had engaged was destroyed by Chika's trion.[45]

    He used Gimlet to freeze another rabbit[46] so Chika and Osamu could destroy it.[47] He then asked to team up with the two to destroy all of the rabbits instead of evacuating.[48] When Hyrein arrived[49], he changed his stance and told Osamu to take Chika and run.[50] He used Hound to shoot down the Alektor's attack[51] but was snuck up on by lizards instead.[52] Osamu and Chika attempted to help him, but Chika was turned into a cube.[53]

    Hyrein was about to attack again[54], but Izumi distracted him and told Osamu to run to HQ.[55] As Osamu left, Izumi declared his intent to get at least one hit on Hyrein.[56] Izumi continued firing fruitlessly, noting that he couldn’t block fast enough.[57] He destroyed the surrounding area[58], bringing the buildings crashing down on Hyrein’s head[59] to allow snipers a clear shot at Hyrein.[60] He was then impressed at the ability of the three snipers at being able to shoot through the shield of Alektor conjured birds.[61]

    Izumi started a battle of stamina[62], using Asteroid to wear down Hyrein’s defenses.[62] When the snipers were blocked, he decided to take advantage of the whittled down defenses.[63] When Hyrein absorbed nearby trion cubes and attacked Izumi again, he bailed out.[64]

    He received an Outstanding Service Reward.[65]

    B-Rank Wars Arc[edit source]

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    Post Round 3[edit source]

    After the Round was over[66], Izumi was amazed that Tachikawa actually did his job as a commentator.[66]

    Round 4[edit source]

    Round 5[edit source]

    Round 7[edit source]

    Round 8[edit source]

    Away Mission Test Arc[edit source]

    A-rank Squad Evaluation[edit source]

    Tachikawa Squad discuss about Ninomiya's abilities as a temporary captain[67], with Tachikawa thinking the squad will have issues[67], while Izumi thinks that it might not.[68] At the end of the discussion[69], Yuiga claims Osamu isn't at his level, but admires his growth[69], while Izumi thinks Osamu has surpassed Yuiga.[69]

    Phase 1[edit source]

    On day 2, Izumi asks Haya about the timestamps on the scoring list[70], and then decides to review the timestamps.[70] Not long after Tachikawa gave Ninomiya a negative score due to Ninomiya saying his squad doesn't need him[71], however Izumi thinks it wasn't warranted.[71]

    On day 4, Izumi asks Kunichika about why Chika is doing much worse in the battle simulation that day.[72] Kunichika then explains it has to do with her Combat Inexperience Skill as it is a fatal flaw with how the game's overall mechanics work.[73]

    References[edit source]

    1. World Trigger MangaBorder Briefing File (p. 270-271)
    2. Daisuke Ashihara: Q: Is Ninomiya the one who created composite bullets? Is it Izumi? Or an Engineer?
      A: Izumi tried it out on some kind of impulse and it worked. That is why he is called "genius-like" and "bullet idiot".
      Source: Border Briefing File, Page 304, Question 145
    3. World Trigger MangaChapter 236 (p. 1)
    4. 4.0 4.1 World Trigger MangaChapter 236 (p. 7-9)
    5. 5.0 5.1 World Trigger Manga and Anime Vol. 14 Chapter 122 (p. 7) and Episode 73.
    6. World Trigger Manga and Anime Vol. 3 Chapter 25 (p. 17) and Episode 13.
    7. World Trigger Manga and Anime Vol. 4 Chapter 26 (p. 9) and Episode 14.
    8. World Trigger Manga and Anime Vol. 4 Chapter 26 (p. 15) and Episode 14.
    9. World Trigger Manga and Anime Vol. 4 Chapter 26 (p. 16-17) and Episode 14.
    10. 10.0 10.1 World Trigger Manga and Anime Vol. 4 Chapter 29 (p. 1) and Episode 15.
    11. World Trigger Manga and Anime Vol. 4 Chapter 29 (p. 2) and Episode 15.
    12. World Trigger Manga and Anime Vol. 4 Chapter 29 (p. 4-7) and Episode 15.
    13. 13.0 13.1 World Trigger Manga and Anime Vol. 4 Chapter 29 (p. 8) and Episode 15.
    14. World Trigger Manga and Anime Vol. 4 Chapter 29 (p. 8-9) and Episode 15.
    15. 15.0 15.1 World Trigger Manga and Anime Vol. 4 Chapter 29 (p. 14) and Episode 15.
    16. World Trigger Manga and Anime Vol. 4 Chapter 29 (p. 15) and Episode 15.
    17. World Trigger Manga and Anime Vol. 4 Chapter 29 (p. 16-17) and Episode 15.
    18. World Trigger Manga and AnimeChapter 29 (p. 18) and Episode 15.
    19. World Trigger Manga and Anime Vol. 4 Chapter 30 (p. 2) and Episode 15.
    20. 20.0 20.1 World Trigger Manga and Anime Vol. 4 Chapter 30 (p. 3) and Episode 15.
    21. World Trigger Manga and Anime Vol. 4 Chapter 30 (p. 5-7) and Episode 15.
    22. World Trigger Manga and Anime Vol. 4 Chapter 30 (p. 8) and Episode 15.
    23. World Trigger Manga and Anime Vol. 4 Chapter 30 (p. 9-10) and Episode 16.
    24. World Trigger Manga and Anime Vol. 4 Chapter 30 (p. 16-17) and Episode 16.
    25. World Trigger Manga and Anime Vol. 4 Chapter 30 (p. 17-18) and Episode 16.
    26. World Trigger Manga and Anime Vol. 4 Chapter 31 (p. 5-6) and Episode 16.
    27. 27.0 27.1 World Trigger Manga and Anime Vol. 7 Chapter 58 (p. 19) and Episode 27.
    28. World Trigger Manga and Anime Vol. 7 Chapter 58 (p. 18-19) and Episode 27.
    29. World Trigger Manga and Anime Vol. 7 Chapter 59 (p. 1) and Episode 27.
    30. 30.0 30.1 World Trigger Manga and Anime Vol. 7 Chapter 59 (p. 2) and Episode 27.
    31. World Trigger Manga and Anime Vol. 7 Chapter 59 (p. 3) and Episode 27.
    32. World Trigger Manga and Anime Vol. 7 Chapter 59 (p. 5-6) and Episode 27.
    33. World Trigger Manga and Anime Vol. 7 Chapter 59 (p. 6-7) and Episode 27.
    34. World Trigger Manga and Anime Vol. 7 Chapter 59 (p. 12-13) and Episode 27.
    35. World Trigger Manga and Anime Vol. 7 Chapter 59 (p. 14-15) and Episode 27.
    36. World Trigger Manga and Anime Vol. 7 Chapter 60 (p. 3-4) and Episode 27.
    37. World Trigger Manga and Anime Vol. 7 Chapter 60 (p. 5) and Episode 27.
    38. World Trigger Manga and Anime Vol. 7 Chapter 60 (p. 6-7) and Episode 27.
    39. World Trigger Manga and Anime Vol. 7 Chapter 60 (p. 7-8) and Episode 27.
    40. 40.0 40.1 World Trigger Manga and Anime Vol. 7 Chapter 60 (p. 13) and Episode 27.
    41. World Trigger Manga and Anime Vol. 7 Chapter 61 (p. 7) and Episode 28.
    42. World Trigger Manga and Anime Vol. 8 Chapter 67 (p. 3-5) and Episode 30.
    43. 43.0 43.1 World Trigger Manga and Anime Vol. 8 Chapter 67 (p. 5) and Episode 30.
    44. World Trigger Manga and Anime Vol. 8 Chapter 67 (p. 5-6) and Episode 30.
    45. World Trigger Manga and Anime Vol. 8 Chapter 67 (p. 15-18) and Episode 30.
    46. World Trigger Manga and Anime Vol. 8 Chapter 68 (p. 2) and Episode 30.
    47. World Trigger Manga and Anime Vol. 8 Chapter 68 (p. 2-3) and Episode 30.
    48. World Trigger Manga and Anime Vol. 8 Chapter 68 (p. 4) and Episode 30.
    49. World Trigger Manga and Anime Vol. 8 Chapter 68 (p. 6-7) and Episode 30.
    50. World Trigger Manga and Anime Vol. 8 Chapter 68 (p. 13) and Episode 30.
    51. World Trigger Manga and Anime Vol. 8 Chapter 68 (p. 14) and Episode 30.
    52. World Trigger Manga and Anime Vol. 8 Chapter 68 (p. 15) and Episode 30.
    53. World Trigger Manga and Anime Vol. 8 Chapter 68 (p. 16-19) and Episode 30.
    54. World Trigger Manga and Anime Vol. 8 Chapter 69 (p. 4) and Episode 31.
    55. World Trigger Manga and Anime Vol. 8 Chapter 69 (p. 5) and Episode 31.
    56. World Trigger Manga and Anime Vol. 8 Chapter 69 (p. 7) and Episode 31.
    57. World Trigger Manga and Anime Vol. 9 Chapter 72 (p. 14-15) and Episode 32.
    58. World Trigger Manga and Anime Vol. 9 Chapter 72 (p. 16-17) and Episode 32.
    59. World Trigger Manga and Anime Vol. 9 Chapter 72 (p. 17-18) and Episode 32.
    60. World Trigger Manga and Anime Vol. 9 Chapter 73 (p. 2-4) and Episode 32.
    61. World Trigger Manga and Anime Vol. 9 Chapter 73 (p. 8) and Episode 32.
    62. 62.0 62.1 World Trigger Manga and Anime Vol. 9 Chapter 73 (p. 5) and Episode 32.
    63. World Trigger Manga and Anime Vol. 9 Chapter 73 (p. 16) and Episode 32.
    64. World Trigger Manga and Anime Vol. 9 Chapter 73 (p. 17-18) and Episode 32.
    65. World Trigger Manga and Anime Vol. 10 Chapter 83 (p. 9) and Episode 37.
    66. 66.0 66.1 World Trigger MangaChapter 103 (p. 13)
    67. 67.0 67.1 World Trigger Manga Vol. 24 Chapter 206 (p. 15).
    68. World Trigger Manga Vol. 24 Chapter 206 (p. 16).
    69. 69.0 69.1 69.2 World Trigger Manga Vol. 24 Chapter 206 (p. 25).
    70. 70.0 70.1 World Trigger Manga Vol. 25 Chapter 215 (p. 2).
    71. 71.0 71.1 World Trigger Manga Vol. 25 Chapter 215 (p. 6).
    72. World Trigger MangaChapter 232 (p. 5)
    73. World Trigger MangaChapter 232 (p. 6)

    Navigation[edit source]

    Border
    Commander in Chief Masamune Kido
    Administration Eizō Netsuki • Katsumi Karasawa • Kyōko Sawamura • Masafumi Shinoda • Motokichi Kinuta • Takumi Rindō
    General Staff Michael Cronin • Raizō Terashima • Seiji Mizunuma
    S-Rank Tsukihiko Amō
    A-Rank Ai Kitora • Asumi Amakura • Futaba Kuroe • Hayato Uno • Isami Tōma • Jun Arashiyama • Kazuma Satomi • Kei Tachikawa • Ken Satori • Kirie Konami • Kōhei Izumi • Kyōsuke Karasuma • Mai Kitagawa • Mitsuru Tokieda • Nozomi Kako • Reiji Kizaki • Ryō Utagawa • Ryūji Saeki • Shinji Fuyushima • Shirō Kikuchihara • Shōhei Kodera • Shūji Miwa • Shun Midorikawa • Sōya Kazama • Takaaki Katagiri • Takeru Yuiga • Tōichirō Momozono • Tōru Narasaka • Yōsuke Yoneya • Yūichi Jin • Yukimaru Ichijō
    B-Rank Atsushi Hokari • Chika Amatori • Daichi Tsutsumi • Fumika Teruya • Hanao Tsukimi • Haruaki Azuma • Hidetaka Kitazoe • Hiro Kitazoe • Hisato Sasamori • Hitoshi Matsushiro • Hyuse • Itsuki Fujisawa • Kai Minamisawa • Kazuaki Ōji • Kazuki Kurauchi • Kazuto Tonooka • Keizō Mamiya • Kō Murakami • Kōji Oki • Kōtarō Suwa • Kotarō Tomoe • Kuniharu Kakizaki • Makoto Chano • Mamoru Tokiwa • Masakuni Hakoda • Masataka Ninomiya • Masato Kageura • Minoru Hata • Mitsuya Koinuma • Noboru Koarai • Osamu Mikumo • Rei Nasu • Rokurō Wakamura • Ryōgo Funabashi • Satoru Hayakawa • Satoshi Mizukami • Seiji Marui • Shinnosuke Tsuji • Shō Motegi • Sumiharu Inukai • Taichi Betsuyaku • Takahiro Ebina • Takuma Yuba • Tatsuhito Ikoma • Tatsuya Kuruma • Tetsuji Arafune • Tokiya Saitō • Tsuneyuki Okudera • Waka Utsunomiya • Wataru Urushima • Yōko Katori • Yoshinobu Kera • Yoshito Hanzaki • Yūichirō Yoshizato • Yukari Obishima • Yukito Otokawa • Yūko Kumagai • Yūma Kuga • Yūta Miura • Yutaka Kashio • Yūya Tsuchisaki • Yuzuru Ema
    C-Rank Fumifumi Saotome • Hidehide Hinoe • Izuho Natsume • Teruteru Kōda
    Operators Aki Hiyami • An Kobayakawa • Aoi Kusumoto • Asami Taya • Asuka Asagiri • Ayumu Hatori • Hana Somei • Haruka Ayatsuji • Haya Kittaka • Hazuki Nanao • Hikari Nire • Kaho Mikami • Karin Yuitsuka • Madoka Ui • Mako Hitomi • Maori Hosoi • Megumi Tokura • Nono Fujimaru • Ren Tsukimi • Rika Rokuta • Rin Kagami • Risa Maki • Rui Osano • Saki Kusakabe • Sakurako Taketomi • Sayoko Shiki • Shiori Usami • Yuka Kon • Yuri Rindō • Yuu Kunichika
    Former Border Agents Akane Hiura • Mirai Hatohara • Tadaomi Kanda • Yūgo Kuga
    Affiliated Personnel Raijinmaru • Replica • Izuho's Cat • Rinji Amatori • Ruka Shinoda • Yōtarō Rindō
    Old Border Agents Hibiki Taira • Ibuki Wakisaka • Kaede Namekata • Kengo Sōma • Kirie Konami • Manabu Kai • Masafumi Shinoda • Masamune Kido • Mato Kujō • Motoki Suzumura • Reiji Kizaki • Rintarō Chihiro • Ryōji Kiriyama • Shin Kazama • Sōichi Mogami • Takumi Rindō • Tetsuya Umesaki • Yūichi Jin • Yuri Rindō
    Squads Arafune Squad • Arashiyama Squad • Azuma Squad • Chano Squad • Ebina Squad • Fuyushima Squad • Hayakawa Squad • Ikoma Squad • Kageura Squad • Kakizaki Squad • Kako Squad • Katagiri Squad • Katori Squad • Kazama Squad • Kusakabe Squad • Kōda Squad • Mamiya Squad • Matsushiro SquadMiwa Squad • Nasu Squad • Ninomiya Squad • Ōji Squad • Suwa Squad • Suzunari First (Kuruma Squad) • Tachikawa Squad • Tamakoma First (Kizaki Squad) • Tamakoma Second (Mikumo Squad) • Tokiwa Squad • Urushima Squad • Yoshizato Squad • Yuba Squad
    Positions All-Rounder • Attacker • Engineer • Gunner • Operator • Shooter • Sniper • Spotter • Trapper
    Branches Hayanuma Branch • Hisama Branch • Suzunari Branch  • Tamakoma Branch  • Wataayu Branch • Yumite District Branch
    Factions Kido Faction • Shinoda Faction • Tamakoma Branch • Factionless Faction
    Triggers Asteroid • Bagworm • Bagworm Tag • Bail Out • Chameleon • Cobra • Connector • Dummy Beacon • Egret • Enhanced Radar • Escudo • Fūjin • Full Arms • Full Attack • Geist • Gimlet • Grasshopper • Hornet • Hound • Ibis • Idaten • Kogetsu (Spear/Gen'yō/Senkū) • Lead Bullet • Lightning • Makō • Meteor • Radar • Raygust (Shield Mode/Thruster) • Salamander • Scorpion • Shield (Fixed Mode/Full Guard) • Silencer • Sōgetsu (Axe) • Spider • Starmaker • Switchbox • Teleporter • Timer • Tomahawk • Trion Body • Viper • Yūma's Black Trigger
     


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