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    Background[edit source]

    Hiyami joined Border approximately two years before Chika Amatori and Yūma Kuga.[1] She eventually joined Ninomiya Squad, rising to A-rank and at one point passing the selection for the Away Team; however, Mirai Hatohara's inability to shoot others caused first her, then the whole squad to be removed from the mission.[2] On May 1,[3] the team dined together at a barbecue restaurant to celebrate Sumiharu Inukai's birthday; shortly afterwards, Hatohara ventured into the Neighborhood with her accomplices,[4] causing Ninomiya Squad to be demoted to B-rank as punishment[5], additionally they couldn't advance during previous June-August, and October-December seasons.[6][7]

    Introduction Arc[edit source]

    Ninomiya Squad presumably takes part in the extermination of all Rads in Mikado City.[8]

    Large-Scale Invasion Arc[edit source]

    Due to Masafumi Shinoda preventing B-rank Squads with missing members from fighting against Aftokrator's forces out of fear of capture, Ninomiya Squad is not deployed.[9]

    B-Rank Wars Arc[edit source]

    Ninomiya Squad fights the first round of Rank Wars on February 1.[10]

    Round Two[edit source]

    Since Azuma Squad, Katori Squad, Ōji Squad and Yuba Squad[11] compete in a four-way rank wars in the day division on February 5,[12] and Ninomiya Squad is known to have clashed with Ikoma Squad on that same day,[13] the battle presumably took place in the night division, with Kageura Squad as the third team.

    Round Three[edit source]

    On Saturday[14] February 8,[15] Ninomiya Squad competes in the third round of rank wars.

    Round Four[edit source]

    On February 15, during the night division of rank wars,[16] the match between Kageura Squad, Ninomiya Squad, Azuma Squad and Tamakoma Second begins in a snowy Cityscape B.[17] Noticing the small number of trion signatures on Radar, Hiyami infers that the members of Azuma Squad are wearing Bagworm and hypothesizes that they might have equipped Grasshopper to outmaneuver everyone else.[18] After Masataka Ninomiya corners Yuzuru Ema, Hiyami confirms his hit. He requests the map of the building the Sniper fled into before reassigning her to supporting Shinnosuke Tsuji.[19] The match ends with Ninomiya Squad in the lead with three points. They retain their position at the very top of the ranking.[20]

    Galopoula's Invasion[edit source]

    Since Azuma Squad, Kageura Squad, and Yuba Squad fight in the night division of rank wars on February 19,[21] Ninomiya Squad must have competed in the day division against Ikoma Squad, Ōji Squad and Suzunari First. They continue to rank first at the end of the match.[22]

    That night, Ninomiya Squad defends Border's Headquarters against Galopoula's Invasion. Hiyami presumably assists her teammates until the attack is repelled.[23]

    Round Six[edit source]

    Ninomiya Squad fights against Kageura Squad, Azuma Squad and Suzunari First in the night division of the sixth round of rank wars. Kageura Squad and Ninomiya Squad tie at the top with three points. No Squad receives the survival bonus due to there being multiple survivors.[24] Following the match, Kageura Squad remains in first place with a point total of 37.[25]

    Round Seven[edit source]

    Since Tamakoma Second faces off against Kageura Squad, Azuma Squad and Suzunari First in the day division of rank wars on March 1,[26] it can be inferred that Ninomiya Squad competes against Ikoma Squad and Ōji Squad in the night division.[27]

    Round Eight[edit source]

    The following evening, the members of Ninomiya Squad run into Chika, Osamu Mikumo, Kirie Konami and Shiori Usami at a restaurant.[27] Hiyami forbids Konami and Usami to mess with Tsuji before helping him remember what Haruaki Azuma's favorite dish is. When he claims that he was able to converse with Hatohara because she was nice from the start, Hiyami suspects that he is trying to imply that she was not. He states that she was guarded at first, but that she is kind now. When the conversation moves to Hatohara, she remembers that she left right after they went out for a barbecue. Her teammates and she finish their meal and leave before the Tamakoma members.[28]

    On March 5, Ninomiya Squad fights the last rank war of the season against Tamakoma Second, Ikoma Squad and Yuba Squad. Hiyami warns Inukai, who is training with Tsuji, when the match is about to begin.[29] When Chika and Yūma don a Bagworm, Hiyami suggests that they are attempting to escape, although they might also be planning an ambush.[30] She then recommends Ninomiya and Tsuji also go off-radar to avoid Kazuto Tonooka.[31] Chika eventually begins to bombard the remaining combatants, with Hiyami warning her teammates that more rounds are likely to follow. She enhances Inukai's vision so it will be easier for him to intercept the incoming explosives.[32] The match ends in Tamakoma Second's victory, with Ninomiya Squad placing second.[33] The three points garnered put their final score at 44, allowing them to retain their position as B-rank #1.[34]

    References[edit source]

    1. World Trigger MangaBorder Briefing File (p. 270)
    2. World Trigger MangaChapter 108 (p. 7)
    3. World Trigger MangaBorder Briefing File (p. 106)
    4. World Trigger MangaChapter 178 (p. 6)
    5. World Trigger MangaChapter 106 (p. 13)
    6. World Trigger MangaChapter 236 (p. 18)
    7. Daisuke Ashihara: Q: After falling to B-Rank, did Ninomiya Squad and Kageura Squad challenge and lose to A-Rank Squads during the Rank Wars in October? Is that why they've remained B-Rank?
      A: After dropping down in the ranks, they couldn't fight for a chance at promotion for a set period of time as a penalty. Something like that.
      Source: Volume 24, Question Corner 20
    8. World Trigger Manga and Anime Vol. 2 Chapter 11 (p. 15) and Episode 6.
    9. Daisuke Ashihara: Q: Why couldn't upper B-ranks like Ninomiya Squad or Kageura Squad participate in the Second Large-Scale Invasion? Did they travel far away on their time off?
      A: It seems I lost the chance to draw it in the story itself so I'll write it here: "HQ Chief Shinoda gave the order that B-rank and lower agents are not allowed to participate in the fight until all members of the team are present". It seems he was worried about agents acting on their own and getting captured by Rabbits. Of course, there are also teams like Kako Squad who was late to the fight because their captain went out on a drive on her time off.
      Source: Border Briefing File, Page 319, Question 252
    10. World Trigger MangaChapter 85 (p. 18)
    11. World Trigger MangaChapter 173 (p. 5)
    12. World Trigger MangaChapter 94
    13. World Trigger MangaChapter 184 (p. 6)
    14. World Trigger MangaChapter 94 (p. 19)
    15. World Trigger MangaChapter 103 (p. 12)
    16. World Trigger MangaChapter 110 (p. 5)
    17. World Trigger MangaChapter 110
    18. World Trigger MangaChapter 111
    19. World Trigger MangaChapter 114
    20. World Trigger MangaChapter 115
    21. World Trigger MangaChapter 123
    22. World Trigger MangaChapter 146 (p. 14)
    23. World Trigger MangaChapter 127
    24. World Trigger MangaChapter 169
    25. World Trigger MangaChapter 161
    26. World Trigger MangaChapter 164
    27. 27.0 27.1 World Trigger MangaChapter 177
    28. World Trigger MangaChapter 178
    29. World Trigger MangaChapter 184
    30. World Trigger MangaChapter 186
    31. World Trigger MangaChapter 189
    32. World Trigger MangaChapter 192
    33. World Trigger MangaChapter 195
    34. World Trigger MangaChapter 196
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