Engineering Department[]
Shiraishi Utaha[]
Hibiki looks up to Utaha as her senior. In contrast to Hibiki's introvertedness, Utaha's extrovertedness sometimes involves Hibiki into doing things that she doesn't want to do, like showing herself in front of people.
Toyomi Kotori[]
A fellow member of the Engineering Department that also shares the same passion of inventing as her. Unlike Hibiki, Kotori is also quite extroverted which sometimes embarrasses Hibiki.
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| V • T • E Relationship (Playable Students) | |
|---|---|
 Abydos Icon
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Shiroko • Shiroko (Riding) • Shiroko (Swimsuit) • Shiroko Terror • Serika • Serika (New Year) • Serika (Swimsuit) • Hoshino • Hoshino (Swimsuit) • Hoshino (Armed) • Nonomi • Nonomi (Swimsuit) • Ayane • Ayane (Swimsuit) |
 Gehenna Icon
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Makoto • Iroha • Ibuki • Satsuki • Chiaki • Hina • Hina (Swimsuit) • Hina (Dress) • Ako • Ako (Dress) • Iori • Iori (Swimsuit) • Chinatsu • Chinatsu (Hot Spring) • Aru • Aru (New Year) • Aru (Dress) • Mutsuki • Mutsuki (New Year) • Kayoko • Kayoko (New Year) • Kayoko (Dress) • Haruka • Haruka (New Year) • Haruna • Haruna (New Year) • Haruna (Gym) • Junko • Junko (New Year) • Izumi • Izumi (Swimsuit) • Akari • Akari (New Year) • Fuuka • Fuuka (New Year) • Juri • Sena • Kasumi • Megu • Kirara |
 Millennium Icon
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Yuuka • Yuuka (Gym) • Noa • Koyuki • Chihiro • Maki • Hare • Hare (Camp) • Kotama • Kotama (Camp) • Neru • Neru (Bunny Girl) • Asuna • Asuna (Bunny Girl) • Karin • Karin (Bunny Girl) • Akane • Akane (Bunny Girl) • Toki • Toki (Bunny Girl) • Utaha • Utaha (Cheerleader) • Hibiki • Hibiki (Cheerleader) • Kotori • Kotori (Cheerleader) • Sumire • Himari • Eimi • Eimi (Swimsuit) • Yuzu • Yuzu (Maid) • Midori • Midori (Maid) • Momoi • Momoi (Maid) • Alice • Alice (Maid) |
 Trinity Icon
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Nagisa • Mika • Kazusa • Kazusa (Band) • Natsu • Airi • Airi (Band) • Yoshimi • Yoshimi (Band) • Tsurugi • Tsurugi (Swimsuit) • Hasumi • Hasumi (Gym) • Mashiro • Mashiro (Swimsuit) • Ichika • Mine • Mine (Idol) • Hanae • Hanae (Christmas) • Serina • Serina (Christmas) • Hifumi • Hifumi (Swimsuit) • Azusa • Azusa (Swimsuit) • Koharu • Koharu (Swimsuit) • Hanako • Hanako (Swimsuit) • Reisa • Suzumi • Ui • Ui (Swimsuit) • Shimiko • Sakurako • Sakurako (Idol) • Mari • Mari (Gym) • Mari (Idol) • Hinata • Hinata (Swimsuit) |
 Hyakkiyako Icon
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Kaho • Chise • Chise (Swimsuit) • Renge • Kikyou • Yukari • Shizuko • Shizuko (Swimsuit) • Pina • Umika • Tsubaki • Tsubaki (Guide) • Mimori • Mimori (Swimsuit) • Kaede • Michiru • Izuna • Izuna (Swimsuit) • Tsukuyo • Wakamo • Wakamo (Swimsuit) |
 Shanhaijing Icon
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Kisaki • Mina • Shun • Shun (Young) • Kokona • Saya • Saya (Casual) • Rumi • Reijo |
 Red Winter Icon
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Cherino • Cherino (Hot Spring) • Tomoe • Tomoe (Qipao) • Marina • Marina (Qipao) • Minori • Meru • Momiji • Nodoka • Nodoka (Hot Spring) • Shigure • Shigure (Hot Spring) |
 Valkyrie Icon
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Kanna • Kanna (Swimsuit) • Kirino • Kirino (Swimsuit) • Fubuki • Fubuki (Swimsuit) |
 SRT Icon
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Miyako • Miyako (Swimsuit) • Saki • Saki (Swimsuit) • Moe • Moe (Swimsuit) • Miyu • Miyu (Swimsuit) |
 Arius Icon
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Saori • Saori (Swimsuit) • Atsuko • Atsuko (Swimsuit) • Misaki • Hiyori • Hiyori (Swimsuit) |
 Schale Icon 3Category:test
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Miku • Misaka Mikoto • Shokuhou Misaki • Saten Ruiko |