Primary

• Go Asahi Friend of Shigeo Kageyama
• Go Asahi Friend of Takeshi Hoshino
• Go Asahi Friend of Ritsu Kageyama
• Go Asahi Friend of Rei Kurosaki
• Go Asahi Friend of Teruki Hanazawa

Extended

• Shigeo Kageyama Older Brother of Ritsu Kageyama
• Shigeo Kageyama Friend of Tenga Onigawara
• Shigeo Kageyama Friend of Teruki Hanazawa
• Takeshi Hoshino Friend of Ritsu Kageyama
• Takeshi Hoshino Friend of Teruki Hanazawa
• Takeshi Hoshino Friend of Shigeo Kageyama