Supplementary Lessons Department[]
Urawa Hanako[]
Due to Hanako's sexual joke being thrown around her especially when Sensei is around. Koharu often tries to get away from Hanako or shut her up, often getting herself into trouble in the process.
Shirasu Azusa[]
Koharu often considers Azusa's actions to be inappropriate although Azusa only tries to do things more efficiently.
Ajitani Hifumi[]
Another member of the Supplementary Lessons Department.
Justice Realization Committee[]
Hanekawa Hasumi[]
Koharu seems to look up to Hasumi so much despite Hasumi only being the vice president of the Justice Task Force.
Tea Party[]
Misono Mika[]
In V3C3E17, during Mika's imprisonment, a group of Tea Party members tried to attack Mika, only to be stopped by Koharu with Sensei appearing not too long after. In V3C4E26, Koharu managed to save some of Mika's accessories that was supposed to be burnt during the Trinity students' protest, earning Mika's trust towards Koharu.
SCHALE[]
Sensei[]
Koharu's constant delusional fantasies of Sensei often get the better of her, much to Sensei's annoyance. Regardless of her tsundere-like attitude, she does call to Sensei for help when she needs it.
[]
| 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
|
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
|
Kisaki • Mina • Shun • Shun (Young) • Kokona • Saya • Saya (Casual) • Rumi • Reijo |
 Red Winter Icon
|
Cherino • Cherino (Hot Spring) • Tomoe • Tomoe (Qipao) • Marina • Marina (Qipao) • Minori • Meru • Momiji • Nodoka • Nodoka (Hot Spring) • Shigure • Shigure (Hot Spring) |
 Valkyrie Icon
|
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
|
Saori • Saori (Swimsuit) • Atsuko • Atsuko (Swimsuit) • Misaki • Hiyori • Hiyori (Swimsuit) |
 Schale Icon 3Category:test
|
Miku • Misaka Mikoto • Shokuhou Misaki • Saten Ruiko |