Primary

• Miku Izayoi affectionate with Tohka Yatogami
• Miku Izayoi In love with Origami Tobiichi

Extended

• Origami Tobiichi classmate of Shidou Itsuka
• Origami Tobiichi In love with Shidou Itsuka
• Origami Tobiichi Enemy of Kurumi Tokisaki
• Origami Tobiichi Enemy of Tohka Yatogami
• Origami Tobiichi Enemy of Yoshino Himekawa
• Origami Tobiichi Teammate of Mana Takamiya
• Tohka Yatogami In love with Shidou Itsuka
• Tohka Yatogami Enemy of Kurumi Tokisaki
• Tohka Yatogami Rival of Origami Tobiichi
• Tohka Yatogami Friend of Kaguya Yamai
• Tohka Yatogami Friend of Yuzuru Yamai
• Tohka Yatogami Enemy of Ellen Mira Mathers