Primary

• Reine Murasame Subordinate of Kotori Itsuka
• Reine Murasame Teammate of Kyouhei Kannazuki

Extended

• Kotori Itsuka Sister of Shidou Itsuka
• Kotori Itsuka Enemy of Kurumi Tokisaki
• Kotori Itsuka protector of Tohka Yatogami
• Kotori Itsuka protector of Yoshino Himekawa
• Kotori Itsuka Enemy of Origami Tobiichi
• Kotori Itsuka Commander of Reine Murasame
• Kotori Itsuka Enemy of Mana Takamiya
• Kotori Itsuka Adoptive sister of Shidou Itsuka
• Kotori Itsuka Commander of Kyouhei Kannazuki
• Kyouhei Kannazuki Obsessed With Kotori Itsuka
• Kyouhei Kannazuki Teammate of Reine Murasame