Primary

• Toru Souma Step-brother of Ren Mizusaka
• Toru Souma Step-brother of Tsukina Sasagiri
• Toru Souma Friend of Akira Nikaidou
• Toru Souma Friend of Yuuya Nonomura
• Toru Souma Enemy of Ayane Shidou

Extended

• Ren Mizusaka Step-sister of Toru Souma
• Tsukina Sasagiri Step-sister of Toru Souma
• Tsukina Sasagiri Friend of Yuuya Nonomura
• Tsukina Sasagiri Friend of Akira Nikaidou
• Akira Nikaidou Friend of Tsukina Sasagiri
• Akira Nikaidou Friend of Yuuya Nonomura
• Akira Nikaidou Friend of Toru Souma
• Ayane Shidou Younger Sister of Yuusuke Shidou
• Ayane Shidou Enemy of Genha
• Ayane Shidou dislikes Genha
• Ayane Shidou Enemy of Toru Souma
• Yuuya Nonomura Friend of Akira Nikaidou
• Yuuya Nonomura Friend of Tsukina Sasagiri
• Yuuya Nonomura Friend of Toru Souma