Knights Hospitaller[]
Asagao Hanae[]
A fellow member of the Knights Hospitaller who shares the same interest in treating patients with Serina. In the A Cathedral Christmas event, Serina seems to be the one giving gifts to Hanae as Santa Claus. She doesn't seem to want Hanae to find out that Santa isn't real.
Aomori Mine[]
Leader of the Knights Hospitaller. As their motto once said, "Mine destroys, the Knights Hospitaller heals."
Sisterhood[]
Wakaba Hinata[]
In the Sister and the Magician of the Old Bookstore event, Hinata helped Serina in dealing with a sudden rush of patients althought Hinata's original plan was to retrieve some holy tonic.
Emergency Medicine Club[]
Himuro Sena[]
In the Get Set, Go! Kivotos Halo Games event, Serina and Sena both worked together with treating patients during the event. For some reason, the two seemed quite suspicious as they were basically shooing anyone that tried to get close to a certain patient.
SCHALE[]
Sensei[]
Although Serina has good intentions, her intentions are often covered by the fact that she basically stalks Sensei everywhere they go to ensure nothing bad happens to them. Even Sensei knows of this and can't do much about it.
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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) • Yuuka (Pajamas) • Noa • Noa (Pajamas) • 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 |